Dozomo is a quick way to reach 201 search engines! Just type the name of a search engine followed by a search term, and dozomo will take you there immediately.
New Ajax social bookmark URL(you can see with what tags one have bookmarked you) and tag search. Says it will be adding more social bookmarking query services almost daily.
A search engine that searches Clipmarks, Creative Mobs, Jots, Shadows, Unalog, Ma.gnlia, Wists... You can also search one social bookmarks by typing: http://gada.be/jots/tag or http://gada.be/digg/tag etc...