meta-search engine (searches several search engines at once)
Dog Pile (yeah, that's the name)
http://www.dogpile.com

Clusty
http://www.clusty.com


Newseum (front page covers of the world's newspapers)
http://www.newseum.org/todaysfrontpages/default.asp

Internet Public Library
http://www.ipl.org


Libraryspot.com
http://www.libraryspot.com

Boolean Operator Search How To Video
http://www.youtube.com/watch?v=7tm-sDKCnO4