When it comes to web searches, I sometime take it for granted that Google is an integral part of the net experience. A quick insertion of the search query in the Google Toolbar, and voila, your uncle is Bob.
But after chasing through a Sitemeter referral to this site, and not wishing to mix my metaphors, I've jumped ship onto another search engine bandwagon.
Vivisimo is what has caught me eye - not a search engine, but a "clustering engine". It's meta-search service organizes the URL, title, and short description outputs of other search engines, and automatically clusters the results so as to organise documents into groups or clusters. Snore. For a geek like me, its "fascinating" (sort of) to check out what subsets of spontaneously-created hierarchical categories the search-input is separated into.