I also like Google, especially for the toolbar. It's very easy to run a search, and it will spawn a new window so your original one isn't lost.
I used to like AltaVista until they "sold out", and now they're Hastalavista in my book. [img]graemlins/hehe.gif[/img]
But, yes, the ability to do image searching, and do searches within domains, etc., is great. Back when Elfwood search was down (and still is 3/4 of the time

) I can do searches for Elfwood artwork by going to Google, restraining the domain to elfwood.lysator.liu.se, and then supplying a search term.
Google is also great at doing fuzzy searching (pages similar to) and backward searching (link searches).
Cheers,
-Sazerac