Yahoo!
Google
Ask Jeeves
AllTheWeb.com - engine
AOL
Hotbot
Teoma
Excite
Altavista
Galexy
Infoseek
Lycos
Vivisimo - "meta-search engine"
Dogpile - "meta-search engine"
DMOZ.org search "directory" not "engine"
Kartoo - engine
About - directory
Vivisimo
Webcrawler
