Kartoo (via BoingBoing, who didn't like it much) - a search engine with curvy Flash-driven UI. I found this interesting enough to play with for a few minutes, and found some frustrations: the colour-coded associations aren't clear, there's no obvious way to "drill down" other than adding or excluding search terms, and the results are basically sparser than a Google result page. But search engines still fail the Hugh egosurf test: can they disambiguate my name? (I won't link to him, if he doesn't link to me....). Here, Kartoo fails badly; it draws links where none should exist.