The Deja News logo as it appeared in 1997.

The Deja News Research Service was an archive of messages posted to Usenet discussion groups, started in 1995 by Steve Madere in Austin, Texas. Its powerful search engine capabilities won the service acclaim, generated controversy, and significantly changed the perceived nature of online discussion. This is a copyrighted and/or trademarked logo. ... Archives refers to a collection of records with specific characteristics, and also refers to the location in which these records are kept. ... Usenet is a distributed Internet discussion system that evolved from a general purpose UUCP network of the same name. ... 1995 (MCMXCV) was a common year starting on Sunday of the Gregorian calendar. ... Skyline from Town Lake City nickname: Live Music Capital of the World Location Location in the state of Texas Government County Travis County Mayor Will Wynn Physical characteristics Area      Land      Water 669. ... The success of the Google search engine was mainly due to its powerful PageRank algorithm and its simple, easy-to-use interface. ... Online means being connected to the Internet or another similar electronic network, like a bulletin board system. ...

While archives of Usenet discussions had been kept for as long as the medium existed, Deja News offered a novel combination of features. It was available to the general public, provided a simple World Wide Web user interface, allowed searches across all archived newsgroups, returned immediate results, and retained messages indefinitely. The search facilities transformed Usenet from a loosely organized and ephemeral communication tool into a valued information repository. The archive's relative permanence, combined with the ability to search messages by author, raised concerns about privacy and confirmed oft-repeated past admonishments that posters should be cautious in discussing themselves and others. ^{(Von Rospach)} Graphic representation of the World Wide Web around Wikipedia The World Wide Web (WWW, W3, or simply Web) is an information space in which the items of interest, referred to as resources, are identified by global identifiers called Uniform Resource Identifiers (URIs). ... A newsgroup is a repository, usually within the Usenet system, for messages posted from many users at different locations. ... Privacy is the ability of an individual or group to stop information about themselves from becoming known to people other than those they choose to give the information to. ...

While Madere was initially reluctant to remove archived material, protests from users and legal pressure led to the introduction of "nuking," a method for posters to permanently remove their own messages from search results. It already supported the use of an "X-No-Archive" message header, which if present would cause an article to be omitted from the archive. This did not prevent others from quoting the material in a later message and causing it to be stored. Copyright holders were also allowed to have material removed from the archive. According to Humphrey Marr of Deja News, copyright actions most frequently came from the Church of Scientology. ^(Lawton) X-No-Archive is a newsgroup message header used to prevent a Usenet message from being archived in various servers, especially Google. ... For copyright issues in relation to Wikipedia itself, see Wikipedia:Copyrights. ... Scientology versus the Internet is the colloquial term for a long-running online dispute between the Church of Scientology and a number of the Churchs online critics. ...

The deja.com logo used from 1999.

The service was eventually expanded beyond search. My Deja News offered the ability to read Usenet in the traditional chronological, per-group manner, and to post new messages to the network. Deja Communities were private Internet forums offered primarily to businesses. In 1999 the site (now known as Deja.com) sharply changed direction and made its primary feature a shopping comparison service. During this transition, which involved relocation of the servers, many older messages in the Usenet archive became unavailable. This is a copyrighted and/or trademarked logo. ... Gaia Online, the largest English language forum-based community as of April 2005 — powered by a modified version of phpBB. An Internet forum is a web application which provides for discussion, often in conjunction with online communities. ... 1999 (MCMXCIX) is a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ...

By late 2000 the company, in financial distress, sold the shopping service to eBay, who incorporated the technology into their half.com service. By 2001 the search service was shut down. The archives were acquired by Google and reintroduced as Google Groups. Archive coverage was extended back to 1981 with the addition of collections from private sources. Longtime users sometimes refer to the resurrected archive as "Dejagoogle" or "Gooja."
This article is about the year 2000. ... eBay Inc. ... 2001: A Space Odyssey. ... Google, Inc. ... // Google offers a variety of services and tools besides its basic web search. ... 1981 (MCMLXXXI) is a common year starting on Thursday of the Gregorian calendar. ...

• Chuq Von Rospach. A Primer on How to Work With the Usenet Community. Usenet introductory document posted regularly until 1999.
• George Lawton (January 1997). Internet archives: Who's doing it? And can you protect your privacy?. SunWorld.
• Andy Langer (July 14,1997). The Post Man Always Saves Twice. Austin Chronicle.
• Courtney Macavinta, Janet Kornblum (December 8, 1997) Deja News joins antispam war. C|Net news.com.
• Greg R. Notess (July 1998). On The Net: DejaNews and Other Usenet Search Tools ONLINE magazine.
• Janelle Brown (May 24, 1999). What does it take to make a buck off of Usenet? Salon.
• Hulk Snead (November 27, 2000). Geekquake, or, I Hear America Whining. Suck.
• Ryan Naraine (December 12, 2000). eBay Acquires Deja.com's Technology. internetnews.com (Jupiter Media).
• Google Inc. (February 12, 2001). Google Acquires Usenet Discussion Service and Significant Assets from Deja.com. Press release.