Just as Google is finally going to sell stock to the public, yet another search engine, called Gigablast, has appeared, with a name that is at least partly a sly pun (google is a '1' with a hundred zeroes after it; 'giga' is a billion).
Gigablast appears to have a different set of algorithms than Google, and a few queries I tried seemed to offer slightly better results, with fewer extraneous hits. As always, competition is a good thing, especially with Google's strategy of late of trying to tie their own content to search results--not a good thing from the user perspective.