Search Engines - search about 1% of the web - try more than one for different results

All the Web - find it all

Alta Vista

Ask

Bing - Microsoft's new search engine

Blackle - custom search engine by Google

Boolify - understand how a search is created

Complete Planet - 70,000+ searchable databases, and speciality search engines

Dogpile - many search engines together

exalead - visual of web pages

FindSounds - searches for sounds

Google

Infomine - searches scholarly internet sites

Infotopia- searches teacher, librarian approved sites

Ixquick - meta search engine

Librarians' Internet Index - evaluated sites

Mamma - the mother of all search engines

RedZee - screenshot of webpages

SearchCube - cube screenshot of websites

SearchEdu - searches .edu sites

Scirus - searches science sites

Spezify - visual search 

Yahoo

Yippy - meta search engine

WolfRam/alpha - a computational knowledge engine

Zuula - top search engines in tabs

Boolean Search

Video on Web Searching

Horizon Information portal

http://www.online-college-blog.com/index.php/features/100-useful-tips-and-tools-to-research-the-deep-web/