Other info:
Delicious (formerly del.icio.us) is a social bookmarking web service for storing, sharing, and discovering web bookmarks. The site was founded by Joshua Schachter in 2003 and acquired by Yahoo! in 2005. Delicious uses a non-hierarchical classification system in which you can tag each of your bookmarks with freely chosen index terms. All bookmarks posted to Delicious are publicly viewable by default, although you can mark specific bookmarks as private.
Key features:
A combined view of your bookmarks with a given tag is available.
RSS feeds for web syndication.
"hotlist" on Delicious’ home page and "popular" and "recent" pages.