Links:
Free People Search Engine - Free people finder service
GoogSpy - Adwords Competitor Research by Velocityscape
Info.com - Displays results from 12 search engines
LUKOL - Intelligent Web Search and Directory
Serph — Track buzz in real time.
Swoogle - A Semantic Web Search and Metadata Engine
The Anatomy of a Search Engine
The Top 100 Alternative Search Engines
Webopedia Online Computer Dictionary for Internet Terms and Technical Support.
White Pages listings on WhoWhere