I’ve used various social bookmarking tools, such as Furl and Magnolia, but have settled on delicious for a while. If you use many bookmarking applications, as well as rating tools like Digg, you might be interested in SocialMarker, which lets you save a page for filing on several systems at once.
SocialMarker lists 31 tools, several which I’ve never heard of, and a new bookmarking service, Mister-Wong, which is targeted at the education field.
