why the hell would they do that? Alot of search engines use google. I know yahoo used...but i think that ended. I'm sure someone will help me out and chim in with others.
If I can't find it on google- ie looking up some obscure artist or musician for a relative- then I'll usually wander between yahoo, hotbot and raging.
Raging used to be my favourite, back like late 99... but it caught a case of the fruities about the same time google started up strong.. I found google by searching on raging for search engines