Original Net Animation (ONA) is an acronym used in Japan for anime titles that are directly released onto the Internet. It is a relatively new form of animation distribution that has not been widely adopted, but has been made possible by the increasing amount of Internet Streaming media websites in Japan. Acronyms and initialisms are abbreviations formed from the initial letter or letters of words, such as NATO and XHTML, and are pronounced in a way that is distinct from the full pronunciation of what the letters stand for. ... A scene from Cowboy Bebop (1998) Anime (アニメ) is a style of animation originating in Japan. ... Streaming media is media that is consumed (read, heard, viewed) while it is being delivered. ...

A growing number of trailers and preview episodes of new anime has been released as ONAs.