Media Center Search Engines

 Basic Search Engines

Yahoo Axis
Ask ("Natural language" engine)
Bing (MSN)
Blackle (energy saver) 
DuckDuckGo
Google
SweetSearch (only approved sources)
Yahoo!

Meta Search Engines

Dogpile
Hotbot 
iBoogie
Ixquick MetaSearch 
Mamma
MetaCrawler (The oldest one-Now Zoo)
Thumbshots Ranking (compare) 

 Specialized Search Engines

AnnaNova (News Search)
CiteSeer (IT and computer science)
CompletePlanet (A "deep Web" search)
Education iSeek (only credible sites used) 
Entrez (search life sciences)
Go 2 Web 2.0 (web 2.0 directory)
HealthLine (search medical sites)
Intute (Social Sciences)
News Look Up (News Search)
MsFreckles (unique way to limit searches
OJOSE (Search online scientific journals)
OAIster (deep web search)
OmniMedicalSearch (top rated medical)
Coremine (Search biology and genetics)
US Legal Research (search court decisions)
Similicio.us (find similar sites)
WolframAlpha (computational search engine)
OAIster (searches academic collections not covered by Google, etc.)
Scirus (search engine for science sites only)

 Internet Directories

(search by topic) 
About.com 
ALA Great Websites For Kids
DMOZ Open Directory Project 
GoGuides 
Infomine 
Intute
JoeAnt 
KidsClick (by librarians)
Librarian's Index to the Internet. 
WWW Virtual Library

 Search Engine News

(Keep up to date on the latest search engine news.)
Search Engine Showdown and Search Engine Watch (New developments regarding browsers.)