http://www.alltheweb.com

Search tool owned by Yahoo and using its database, but presenting results differently. Also offers news, picture, video, and audio search.

http://www.altavista.com

Search Engine.

http://www.aol.com

America On Line's portal, offering search, shopping, channels, chat and mail.

http://www.dmoz.org

Help build the most comprehensive human-reviewed directory of the web.

http://www.dogpile.com

Meta-search engine.