RSS is a family of XML dialects for Web syndication used by (among other things) news websites and weblogs. The abbreviation is used to refer to the following standards: The Extensible Markup Language (XML) is a W3C-recommended general-purpose markup language for creating special-purpose markup languages, capable of describing many different kinds of data. ... Web syndication is a form of syndication in which a section of a website is made available for other sites to use. ... The front page of the English Wikipedia Website. ... A weblog (now more commonly known as a blog) is a web-based publication consisting primarily of periodic articles (normally, but not always, in reverse chronological order). ...

• Rich Site Summary (RSS 0.91)
• RDF Site Summary (RSS 0.9 and 1.0)
• Really Simple Syndication (RSS 2.0)

The technology of RSS allows Internet users to subscribe to websites that have provided RSS feeds; these are typically sites that change or add content regularly. To use this technology, site owners create or obtain specialized software (such as a content management system) which, in the machine-readable XML format, presents new articles in a list, giving a line or two of each article and a link to the full article or post. Unlike subscriptions to many printed newspapers and magazines, most RSS subscriptions are free. Computer software (or simply software) refers to one or more computer programs and data held in the storage of a computer for some purpose. ... A content management system (CMS) is a computer software system for organizing and facilitating collaborative creation of documents and other content. ... The Extensible Markup Language (XML) is a W3C-recommended general-purpose markup language for creating special-purpose markup languages, capable of describing many different kinds of data. ...

The RSS formats provide web content or summaries of web content together with links to the full versions of the content, and other meta-data. This information is delivered as an XML file called an RSS feed, webfeed, RSS stream, or RSS channel. In addition to facilitating syndication, RSS allows a website's frequent readers to track updates on the site using an aggregator. The Extensible Markup Language (XML) is a W3C-recommended general-purpose markup language for creating special-purpose markup languages, capable of describing many different kinds of data. ... An aggregator or news aggregator is a type of software that retrieves syndicated Web content that is supplied in the form of a web feed (RSS, Atom and other XML formats), and that are published by weblogs, podcasts, vlogs, and mainstream mass media websites. ...

Usage

RSS is widely used by the weblog community to share the latest entries' headlines or their full text, and even attached multimedia files. (See podcasting, vodcasting, broadcasting, screencasting, Vloging, and MP3 blogs.) In mid 2000, use of RSS spread to many of the major news organizations, including Reuters, CNN, and the BBC. These providers allow other websites to incorporate their "syndicated" headline or headline-and-short-summary feeds under various usage agreements. RSS is now used for many purposes, including marketing, bug-reports, or any other activity involving periodic updates or publications. A weblog (now more commonly known as a blog) is a web-based publication consisting primarily of periodic articles (normally, but not always, in reverse chronological order). ... Podcasting is the distribution of audio or video files, such as radio programs or music videos, over the internet using RSS syndication for listening on mobile devices and personal computers. ... It has been suggested that this article or section be merged with vlog. ... This article or section does not cite its references or sources. ... A screencast is a digital recording of computer screen output, often containing audio narration. ... It has been suggested that this article or section be merged with vodcast. ... An MP3 blog is a type of weblog in which the creator makes music files, normally in the MP3 format, available for download. ... Reuters Group plc LSE: RTR NASDAQ: RTRSY is best known as a news service that provides reports from around the world to newspapers and broadcasters. ... The Cable News Network, usually referred to as CNN, is a cable television network founded in 1980 by Ted Turner and Reese Schonfeld [1] [2] (although the latter is not currently recognized in CNNs official history). ... Corporate logo of the British Broadcasting Corporation. ...

A program known as a feed reader or aggregator can check RSS-enabled webpages on behalf of a user and display any updated articles that it finds. It is now common to find RSS feeds on major Web sites, as well as many smaller ones. It is very common to find RSS feeds on Blog and Wiki sites. A blog is a website in which items are posted on a regular basis and displayed in reverse chronological order. ... Look up Wiki in Wiktionary, the free dictionary Wikibooks has more about this subject: Wiki Science A wiki (IPA: <wee-kee> or <wick-ey>) is a type of website that allows users to easily add and edit content and is especially suited for collaborative writing. ...

Client-side readers and aggregators are typically constructed as standalone programs or extensions to existing programs like web browsers. Browsers are moving toward integrated feed reader functions, such as Opera browser and Mozilla Firefox. Such programs are available for various operating systems. See list of news aggregators. Icons for Web browser shortcuts on an Apple computer (Safari, Internet Explorer, and Firefox). ... Opera is a cross-platform internet software suite consisting of a web browser, e-mail/news client, address book, newsfeed reader, IRC chat client, and download manager. ... Mozilla Firefox is a free, cross-platform, graphical web browser developed by the Mozilla Corporation and hundreds of volunteers. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...

Web-based feed readers and news aggregators require no software installation and make the user's "feeds" available on any computer with Web access. Some aggregators syndicate (combine) RSS feeds into new feeds, e.g., take all football related items from several sports feeds and provide a new football feed. There are also search engines for content published via RSS feeds like Feedster or Blogdigger. Feedster was founded in March 2003 by Scott Johnson. ... Blogdigger was founded in March 2003 by Greg Gershman. ...

On Web pages, RSS feeds are typically linked with an orange rectangle, , or with the letters or . Image File history File links Livemark. ... Image File history File links XML.gif Summary The official XML feed button from Harvard University. ... Image File history File links RSS.gif Summary A derivative work of Image:XML.gif. ...

History

Before RSS several similar formats already existed for syndication, but none achieved widespread popularity or are still in common use today, as most were envisioned to work only with a single service. For example, in 1997 Microsoft created Channel Definition Format for the Active Channel feature of Internet Explorer 4.0, which became mildly popular. Dave Winer also designed his own XML syndication format for use on his Scripting News weblog, which was also introduced in 1997^[1]. 1997 (MCMXCVII) is a common year starting on Wednesday of the Gregorian calendar. ... Microsoft Corporation (NASDAQ: MSFT, HKEx: 4338) is the worlds largest software corporation, with 2005 global annual sales of almost $40 billion USD and about 64,000 employees in 85 countries and regions. ... Channel Definition Format (CDF) is an XML standard used in conjunction with Microsoft Active Channel and Smart Offline Favorites technologies. ... Internet Explorer, abbreviated IE or MSIE, is a proprietary graphical web browser made by Microsoft and currently available as part of Microsoft Windows. ... Dave Winer Dave Winer (b. ...

RDF Site Summary, the first version of RSS, was created by Dan Libby of Netscape in March 1999 for use on the My Netscape portal. This version became known as RSS 0.9. In July 1999, responding to comments and suggestions, Libby produced a prototype tentatively named RSS 0.91^[2] (RSS standing for Rich Site Summary), that simplified the format and incorporated parts of Winer's scriptingNews format. This they considered an interim measure, with Libby suggesting an RSS 1.0-like format through the so-called Futures Document^[3]. Resource Description Framework (RDF) is a family of specifications for a metadata model that is often implemented as an application of XML. The RDF family of specifications is maintained by the World Wide Web Consortium (W3C). ... Netscape Communications Corporation was the publisher of the Netscape Navigator web browser as well as many other internet and intranet client and server software products. ...

Soon afterwards, Netscape lost interest in RSS/XML, leaving the format without an owner, just as it was becoming widely used. A working group and mailing list, RSS-DEV, was set up by various users and XML world notables to continue its development. At the same time, Winer unilaterally posted a modified version of the RSS 0.91 specification to the Userland website, since it was already in use in their products. He claimed the RSS 0.91 specification was the property of his company, UserLand Software.^[4] Since neither side had any official claim on the name or the format, arguments raged whenever either side claimed RSS as its own, creating what became known as the RSS fork. Wikipedia does not have an article with this exact name. ... A mailing list is a collection of names and addresses used by an individual or an organization to send material to multiple recipients. ... UserLand Software is a US software company founded by Dave Winer, who co-developed the XML-RPC protocol with Microsoft in 1995. ...

The RSS-DEV group went on to produce RSS 1.0^[5] in December 2000 based on a draft proposal of amendments to the specification presented by Tristan Louis^[6]. Like RSS 0.9 (but not 0.91) this was based on the RDF specifications, but was more modular, with many of the terms coming from standard metadata vocabularies such as Dublin Core. Tristan Louis (born February 28, 1971) is an author, entrepreneur and blogger who has run the site TNL.net since 1994. ... The Dublin Core is a metadata standard for describing digital objects (including webpages) to enhance visibility, accessibility and interoperability, often encoded in XML. It was named so because the first meeting of metadata and web specialists who saw its birth was held in the town of Dublin, Ohio in the...

Nineteen days later, Winer released by himself RSS 0.92^[7], a minor and supposedly compatible set of changes to RSS 0.91 based on the same proposal. In April 2001, he published a draft of RSS 0.93^[8] which was almost identical to 0.92. A draft RSS 0.94 surfaced in August, reverting the changes made in 0.93, and adding a type attribute to the description element. 2001 : January - February - March - April - May - June - July - August - September - October - November - December Events: April 1: An EP-3E United States Navy plane collides with a Chinese Peoples Liberation Army fighter jet. ...

In September 2002, Winer released a final successor to RSS 0.92, known as RSS 2.0 and emphasizing "Really Simple Syndication" as the meaning of the three-letter abbreviation. The RSS 2.0 spec removed the type attribute added in RSS 0.94 and allowed people to add extension elements using XML namespaces. Several versions of RSS 2.0 were released, but the version number of the document model was not changed. 2002 : January - February - March - April - May - June - July - August - September - October - November - December A timeline of events in the news for September, 2002. ... Many modern computer languages provide support for namespaces. ...

In November, 2002, the New York Times began offering its readers the ability to subscribe to RSS news feeds related to various topics. In January, 2003, David Winer called the New York Time's adoption of RSS the "tipping point" in driving the RSS format's becoming a de facto standard. 2002 (MMII) was a common year starting on Tuesday of the Gregorian calendar. ... The New York Times is an internationally known daily newspaper published in New York City and distributed in the United States and many other nations worldwide. ... 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... The phrase tipping point or angle of repose is a sociology term that refers to that dramatic moment when something unique becomes common. ... De facto is a Latin expression that means in fact or in practice. It is commonly used as opposed to de jure (meaning by law) when referring to matters of law or governance or technique (such as standards), that are found in the common experience as created or developed without...

In July, 2003, Winer and Userland Software assigned ownership of the RSS 2.0 specification to his then workplace, Harvard's Berkman Center for the Internet & Society^[9]. 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... Harvard Law School (HLS) is one of the professional graduate schools of Harvard University. ...

Winer was criticized for unilaterally creating a new format and raising the version number. In response, RSS 1.0 coauthor Aaron Swartz published RSS 3.0^[10], a non-XML textual format. The format was possibly intended as a parody and only a few implementations were ever made. Aaron Swartz (born 1986) is a teenage writer, hacker, and activist. ...

In January 2005, Sean B. Palmer and Christopher Schmidt produced a preliminary draft of RSS 1.1.^[11] It was intended as a bugfix for 1.0, removing little-used features, simplifying the syntax and improving the specification based on the more recent RDF specifications. As of July 2005, RSS 1.1 had amounted to little more than an academic exercise.

In August 2005, Jonathan Avidan launched his own project to create an "RSS 3"^[12], though apparently without backing from anyone in the RSS industry, and the project failed to take off. Sean B. Palmer and Morbus Iff, claiming to be acting on behalf of Aaron Swartz, sent a cease-and-desist notice for abuse of the RSS 3 name^[13]. Aaron Swartz (born 1986) is a teenage writer, hacker, and activist. ...

In November 2005, Microsoft proposed its Simple Sharing Extensions [14] to RSS, informally named "Real Simple Synchronization" [15] by Colm Smyth. Ongoing events • Abramoff-Reed gambling scandal • Al Jazeera bombing memo • Avian influenza (H5N1) outbreak • Black sites scandal • Conservative leadership race (UK) • Fuel prices • Irans nuclear program • Jilin chemical plant explosions • Kashmir earthquake • Malawi food crisis • Malaysian prisoner abuse scandal • New Delhi bombings investigation • Niger food crisis • North Indian cyclone... Simple Sharing Extensions Developed by Ray Ozzie (CTO at Microsoft (ex Groove Networks and Lotus)) Dave Winer (inventor RSS) has given input for the specifications (that are based on RSS). ...

In December 2005, the Microsoft IE team and Outlook team have announced in their blogs that they will be adopting the RSS icon, , first used in the Mozilla Firefox browser, effectively making the orange square with white radio waves the industry standard. Image File history File links Livemark. ... Mozilla Firefox is a free, cross-platform, graphical web browser developed by the Mozilla Corporation and hundreds of volunteers. ... Icons for Web browser shortcuts on an Apple computer (Safari, Internet Explorer, and Firefox). ...

Quoted in the IE's RSS blog as follows: This seemed like a very good idea, so in November, Amar and I took a visit down to Silicon Valley to meet with John Lilly and Chris Beard from Mozilla to get their thoughts on it. We all agreed that it’s in the user’s best interest to have one common icon to represent RSS and RSS-related features in a browser. I’m excited to announce that we’re adopting the icon used in Firefox. John and Chris were very enthusiastic about allowing us (and anyone in the community) to use their icon. This isn’t the first time that we’ve worked with the Mozilla team to exchange ideas and encourage consistency between browsers, and we’re sure it won’t be the last.

Michael Affronti, program manager for RSS features in Outlook 12 has been blogging recently. He has some icon news also:

I'm equally excited to announce that Outlook 12 will be using the same icon to represent RSS throughout the product. We are going to be building the new icon into Outlook over the next few weeks, and think it's going to be a great way for users to see the synergy that exists between Outlook 12 and IE 7.

Incompatibilities

As noted above, there are several different versions of RSS, falling into two major branches. The RDF, or RSS 1.* branch includes the following versions:

• RSS 0.90 was the original Netscape RSS version. This RSS was called RDF Site Summary, but was based on an early working draft of the RDF standard, and was not compatible with the final RDF Recommendation.
• RSS 1.0 and 1.1 are an open format by the "RSS-DEV Working Group", again standing for RDF Site Summary. RSS 1.0 is an RDF format like RSS 0.90, but not fully compatible with it, since 1.0 is based on the final RDF 1.0 Recommendation.

The RSS 2.* branch (initially UserLand, now Harvard) includes the following versions: Resource Description Framework (RDF) is a family of specifications for a metadata model that is often implemented as an application of XML. The RDF family of specifications is maintained by the World Wide Web Consortium (W3C). ...

• RSS 0.91 is the simplified RSS version released by Netscape, and also the version number of the simplified version championed by Dave Winer from Userland Software. The Netscape version was now called Rich Site Summary, this was no longer an RDF format, but was relatively easy to use. It remains the most common RSS variant.
• RSS 0.92 through 0.94 are expansions of the RSS 0.91 format, which are mostly compatible with each other and with Winer's version of RSS 0.91, but are not compatible with RSS 0.90. In all Userland RSS 0.9x specifications, RSS was no longer an acronym.
• RSS 2.0.1 has the internal version number 2.0. RSS 2.0.1 was proclaimed to be "frozen", but still updated shortly after release without changing the version number. RSS now stood for Really Simple Syndication. The major change in this version is an explicit extension mechanism using XML Namespaces.

For the most part, later versions in each branch are backward-compatible with earlier versions (aside from non-conformant RDF syntax in 0.90), and both versions include properly documented extension mechanisms using XML Namespaces, either directly (in the 2.* branch) or through RDF (in the 1.* branch). Most syndication software supports both branches. Mark Pilgrim's article "The Myth of RSS Compatibility" discusses RSS version compatibility in more detail. Dave Winer Dave Winer (b. ...

The extension mechanisms make it possible for each branch to track innovations in the other. For example, the RSS 2.* branch was the first to support enclosures, making it the current leading choice for podcasting, and as of mid-2005 is the format supported for that use by iTunes and other podcasting software; however, an enclosure extension is now available for the RSS 1.* branch, mod_enclosure [16]. Likewise, the RSS 2.* core specification does not support providing full-text in addition to a synopsis, but the RSS 1.* markup can be (and often is) used as an extension. There are also several common outside extension packages available, include a new proposal from Microsoft for use in Internet Explorer 7. Wikipedia does not have an article with this exact name. ... Podcasting is the distribution of audio or video files, such as radio programs or music videos, over the internet using RSS syndication for listening on mobile devices and personal computers. ... iTunes is a proprietary digital media player application, developed by Apple Computer, for playing and organizing digital music and video files. ... Podcasting is the distribution of audio or video files, such as radio programs or music videos, over the internet using RSS syndication for listening on mobile devices and personal computers. ... Microsoft Corporation (NASDAQ: MSFT, HKEx: 4338) is the worlds largest software corporation, with 2005 global annual sales of almost $40 billion USD and about 64,000 employees in 85 countries and regions. ... Internet Explorer, abbreviated IE or MSIE, is a proprietary graphical web browser made by Microsoft and currently available as part of Microsoft Windows. ...

The most serious compatibility problem is with HTML markup. Userland's RSS reader—generally considered as the reference implementation—did not originally filter out HTML markup from feeds. As a result, publishers began placing HTML markup into the titles and descriptions of items in their RSS feeds. This behaviour has become widely expected of readers, to the point of becoming a de facto standard, though there is still some inconsistency in how software handles this markup, particularly in titles. The RSS 2.0 specification was later updated to include examples of entity-encoded HTML, however all prior plain text usages remain valid. A piece of HTML code with syntax highlighting In computing, Hypertext Markup Language (HTML) is a markup language designed for the creation of web pages with hypertext and other information to be displayed in a web browser. ... De facto is a Latin expression that means in fact or in practice. It is commonly used as opposed to de jure (meaning by law) when referring to matters of law or governance or technique (such as standards), that are found in the common experience as created or developed without...

Atom

In reaction to recognised issues with RSS (and because RSS 2.0 is frozen), a third group began a new syndication specification, Atom, in June 2003, and their work was later adopted by Internet Engineering Task Force (IETF). Atom is an XML-based document format for the syndication of web content such as weblogs and news headlines, and an HTTP-based protocol for editing weblogs based on the format. ... 2003 : January - February - March - April - May - June - July - August - September - October - November - December A timeline of events in the news for June, 2003. ... The Internet Engineering Task Force (IETF) develops and promotes Internet standards; in particular those of the TCP/IP protocol suite. ...

The relative benefits of Atom and the two RSS branches are currently a subject of heated debate within the Web-syndication community. Supporters claim that Atom improves on RSS by relying on standard XML features, and by specifying a payload container that can handle many different kinds of content unambiguously. Opponents claim that Atom unnecessarily introduces a third branch of syndication specifications, further confusing the marketplace.

For a comparison of Atom 1.0 to RSS 2.0 from the point of view of an Atom supporter, see Tim Bray's article here: [17].

Example

The following is an example of an RSS 1.0 file.

 <?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://purl.org/rss/1.0/"> <channel rdf:about="http://www.xml.com/xml/news.rss"> <title>XML.com</title> <link>http://xml.com/pub</link> <description> XML.com features a rich mix of information and services for the XML community. </description> <image rdf:resource="http://xml.com/universal/images/xml_tiny.gif" /> <items> <rdf:Seq> <rdf:li resource="http://xml.com/pub/2000/08/09/xslt/xslt.html" /> <rdf:li resource="http://xml.com/pub/2000/08/09/rdfdb/index.html" /> </rdf:Seq> </items> <textinput rdf:resource="http://search.xml.com" /> </channel> <image rdf:about="http://xml.com/universal/images/xml_tiny.gif"> <title>XML.com</title> <link>http://www.xml.com</link> <url>http://xml.com/universal/images/xml_tiny.gif</url> </image> <item rdf:about="http://xml.com/pub/2000/08/09/xslt/xslt.html"> <title>Processing Inclusions with XSLT</title> <link>http://xml.com/pub/2000/08/09/xslt/xslt.html</link> <description> Processing document inclusions with general XML tools can be problematic. This article proposes a way of preserving inclusion information through SAX-based processing. </description> </item> <item rdf:about="http://xml.com/pub/2000/08/09/rdfdb/index.html"> <title>Putting RDF to Work</title> <link>http://xml.com/pub/2000/08/09/rdfdb/index.html</link> <description> Tool and API support for the Resource Description Framework is slowly coming of age. Edd Dumbill takes a look at RDFDB, one of the most exciting new RDF toolkits. </description> </item> <textinput rdf:about="http://search.xml.com"> <title>Search XML.com</title> <description>Search XML.com's XML collection</description> <name>s</name> <link>http://search.xml.com</link> </textinput> </rdf:RDF> 

The following is an example of an RSS 2.0 file.

 <?xml version="1.0"?> <rss version="2.0"> <channel> <title>Birthday Bash Interviews</title> <link>http://kccnfm100.com/</link> <description>Natural Vibrations.</description> <language>en-us</language> <pubDate>Tue, 10 Jun 2003 04:00:00 GMT</pubDate> <lastBuildDate>Tue, 10 Jun 2003 09:41:01 GMT</lastBuildDate> <docs>http://blogs.law.harvard.edu/tech/rss</docs> <generator>Weblog Editor 2.0</generator> <managingEditor>editor@example.com</managingEditor> <webMaster>webmaster@example.com</webMaster> <item> <title>Star City</title> <link>http://liftoff.msfc.nasa.gov/news/2003/news-starcity.asp</link> <description>How do Americans get ready to work with Russians aboard the International Space Station? They take a crash course in culture, language and protocol at Russia's Star City.</description> <pubDate>Tue, 03 Jun 2003 09:39:21 GMT</pubDate> <guid>http://liftoff.msfc.nasa.gov/2003/06/03.html#item573</guid> </item> <item> <description>Sky watchers in Europe, Asia, and parts of Alaska and Canada will experience a partial eclipse of the Sun on Saturday, May 31st.</description> <pubDate>Fri, 30 May 2003 11:06:42 GMT</pubDate> <guid>http://liftoff.msfc.nasa.gov/2003/05/30.html#item572</guid> </item> <item> <title>The Engine That Does More</title> <link>http://liftoff.msfc.nasa.gov/news/2003/news-VASIMR.asp</link> <description>Before man travels to Mars, NASA hopes to design new engines that will let us fly through the Solar System more quickly. The proposed VASIMR engine would do that.</description> <pubDate>Tue, 27 May 2003 08:37:32 GMT</pubDate> <guid>http://liftoff.msfc.nasa.gov/2003/05/27.html#item571</guid> </item> <item> <title>Astronauts' Dirty Laundry</title> <link>http://liftoff.msfc.nasa.gov/news/2003/news-laundry.asp</link> <description>Compared to earlier spacecraft, the International Space Station has many luxuries, but laundry facilities are not one of them. Instead, astronauts have other options.</description> <pubDate>Tue, 20 May 2003 08:56:02 GMT</pubDate> <guid>http://liftoff.msfc.nasa.gov/2003/05/20.html#item570</guid> </item> </channel> </rss> 

See also

• OPML
• News aggregator
• Push technology
• Atom (standard)
• List of content syndication markup languages
• List of news aggregators
• Media RSS
• Semantic Web

OPML (Outline Processor Markup Language) is an XML format for outlines. ... An aggregator or news aggregator is a type of software that retrieves syndicated Web content that is supplied in the form of a web feed (RSS, Atom and other XML formats), and that are published by weblogs, podcasts, vlogs, and mainstream mass media websites. ... Push technology, also called server push, describes an internet-based content delivery system where information is delivered from a central server to a client computer based upon a predefined set of request parameters outlined by the client computer. ... Atom is an XML-based document format for the syndication of web content such as weblogs and news headlines, and an HTTP-based protocol for editing weblogs based on the format. ... The following is a list of content syndication markup languages. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Media RSS (MRSS) is a RSS module used for syndicating multimedia files (audio, video, image) in RSS feeds. ... The Semantic Web is a project that intends to create a universal medium for information exchange by giving meaning (semantics), in a manner understandable by machines, to the content of documents on the Web. ...

Notes and references

1. ^ Winer, Dave, 12 December 1997. Scripting.com: Scripting News in XML
2. ^ Libby, Dan, 10 July 1999. RSS 0.91 Spec, revision 3
3. ^ Libby, Dan, 24 August 2000. Syndication Mailing List: Introducing Myself
4. ^ Winer, Dave, 4 June 2000. RSS 0.91: Copyright and Disclaimer
5. ^ RSS-DEV Working Group, December 9, 2000. RDF Site Summary (RSS) 1.0
6. ^ Louis, Tristan, 13 October 2000. Suggestion for RSS 0.92 specification
7. ^ Winer, Dave, 25 December 2000. RSS 0.92 Specification
8. ^ Winer, Dave, 20 April 2001. RSS 0.93 Specification
9. ^ Berkman Center, 15 July 2003. RSS 2.0 Specification moves to Berkman
10. ^ Swartz, Aaron, 6 September 2002. The Road to RSS 3.0 and RSS 3.0
11. ^ Palmer, Sean B. and Christopher Schmidt, 23 January 2005. RSS 1.1: RDF Site Summary
12. ^ Avidan, Jonathan, August 2005. RSS 3 Project
13. ^ Palmer, Sean B., 20 August 2005. RSS 3: Cease and Desist Notice

December 12 is the 346th day (347th in leap years) of the year in the Gregorian calendar, with 19 days remaining. ... 1997 (MCMXCVII) is a common year starting on Wednesday of the Gregorian calendar. ... July 10 is the 191st day (192nd in leap years) of the year in the Gregorian Calendar, with 174 days remaining. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... August 24 is the 236th day of the year in the Gregorian Calendar (237th in leap years), with 129 days remaining. ... This article is about the year 2000. ... June 4 is the 155th day of the year in the Gregorian calendar (156th in leap years), with 210 days remaining. ... This article is about the year 2000. ... December 9 is the 343rd day (344th in leap years) of the year in the Gregorian calendar. ... This article is about the year 2000. ... October 13 is the 286th day of the year (287th in leap years). ... This article is about the year 2000. ... December 25 is the 359th day of the year (360th in leap years) in the Gregorian Calendar, with 6 days remaining. ... This article is about the year 2000. ... April 20 is the 110th day of the year in the Gregorian calendar (111th in leap years). ... 2001: A Space Odyssey. ... July 15 is the 196th day (197th in leap years) of the year in the Gregorian Calendar, with 169 days remaining. ... 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... September 6 is the 249th day of the year (250th in leap years). ... 2002 (MMII) was a common year starting on Tuesday of the Gregorian calendar. ... January 23 is the 23rd day of the year in the Gregorian calendar. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... August 20 is the 232nd day of the year (233rd in leap years) in the Gregorian Calendar. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ...

External links

Wikimedia Commons has media related to:

RSS

Image File history File links Commons-logo. ... The Wikimedia Commons (also called Commons or Wikicommons) is a repository of free content images, sound and other multimedia files. ...

Specifications

• RSS 0.91 Spec, revision 3
• RSS 1.0 Specifications (RDF Site Summary 1.0) Modules
• RSS 2.0 Specifications Modules
• (proposed) Simple Sharing Extensions to RSS (Microsoft)
• rss-extensions.org, a proposed list of RSS extensions by companies such as Microsoft, Apple and others

History and context

• RSS History (Joseph Reagle)
• RSS History (Dave Winer)
• RSS Political Faq (Dave Winer)
• History of the RSS Fork (Mark Pilgrim)
• The Myth of RSS Compatibility (Mark Pilgrim)
• RSS Quick Summary (Sam Ruby)
• RSS 2.0 And Atom 1.0 Compared (various/wiki)
• Content feeds with RSS 2.0
• Usage Study, RSS—Crossing into the Mainstream (Ipsos Insight/Yahoo!), PDF