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Delicious uses a non-hierarchical classification system in which users can tag each of their bookmarks with freely chosen index terms (generating a kind of folksonomy). A combined view of everyone's bookmarks with a given tag is available; for instance, the URL "http://delicious.com/tag/wiki" displays all of the most recent links tagged "wiki". Its collective nature makes it possible to view bookmarks added by similar-minded users.

Delicious has a "hotlist" on its home page and "popular" and "recent" pages, which help to make the website a conveyor of internet memes and trends.

Delicious is one of the most popular social bookmarking services.[2] Many features have contributed to this, including the website's simple interface, human-readable URL scheme, a novel domain name, a simple REST-like API, and RSS feeds for web syndication.


Use of Delicious is free. The source code of the site is not available, but a user can download his or her own data through the site's API in an XML or JSON format, or export it to a standard Netscape bookmarks format.

All bookmarks posted to Delicious are publicly viewable by default, although users can mark specific bookmarks as private, and imported bookmarks are private by default. The public aspect is emphasized; the site is not focused on storing private ("not shared") bookmark collections.[3] Delicious linkrolls, tagrolls, network badges, RSS feeds, and the site's daily blog posting feature can be used to display bookmarks on weblogs.
According to: http://en.wikipedia.org/wiki/Delicious_(website)