Swami

iSeek mixes their results with Google's and provides clustering. I like their clustering a bit more that Yippie's.

Bubblehunt - Returns lists of sites added/checked by volunteers.

Goto - They're back, as a volunteer edited engine like Bubblehunt. First two or three results ate user-edited lists, followed by regular web results. Not sure if they buy the regular web results, or if they've set up an actual crawler-based search engine.

AllTheInternet - Seems to have decent, unique results. Portal-like layout. Gives you the option of searching their engine or a few other major sit...

sites/engines. Also operates SearchALot, not to be confused with Search.alot, which is a browser hijacker.

Yooip - Public demo of an open source search engine. 1st page looks good, but 2nd page repeats most of the 1st page's results, as does the 3rd & 4th page.