File under "LazyWeb 2.0": expialidocio.us. Maps your del.icio.us tagging habits over time. Not mindblowingly useful, but nifty nonetheless.
RawSugar - tastier than del.icio.us? Their hierarchical tagging scheme and the way they handle suggested items between users seem slick. But the social bookmarking phenomenon keeps growing, including specialty sites for academics and scientists. With Yahoo!'s My Web 2.0, it went mainstream. Google's tagging too. Heck, even Amazon's doing it. The usefulness of a social bookmarking site depends on its popularity, so is the concept getting hurt by all this balkanization? Have things gotten out of hand if there's a swiss army bookmarklet tool generator to speed things up? When will the tagging craze die down?
Absolutely Del.icio.us - Complete Tool Collection The always-cool del.icio.us, purveyor of internet virals, memes, and other assorted internettery (and offshoot of the quirky memepool) can now be supercharged with this set of handy tools. Also check out populicio.us, a re-organization of popular del.icio.us.