Search Engines and Lookup Pages

• Google
• HotBot
• Excite
• Yahoo
• MultiMeta
• Starting Point
• The WWW Virtual Library

 Research Sites

• Purdue University's Virtual Reference Desk
• I-Tool's Research It
• Scientific Phenomena Strange and Natural
• Websters Dictionary
• Old Farmers Almanac
• Better Business Bureau
• Britannica Online
• CIA World Fact Book
• Information Please

Medical Reference Sites

• National Institutes of Health
• Centers for Disease Control and Prevention
• Mayo Health
• American Medical Association
• Aetna Inteli-Health
• MedScape from WebMD
• Drug Index

Thanks to Dan Knight for his contributions to the above lists