Librarians Index to the Internet
www.lii.org

Google Directory
http://www.google.com/dirhp

About.com
www.about.com

Virtual Reference Library
www.virtualreferencelibrary.ca

Southern Ontario Library Service Ready Reference Resources
http://www.sols.org/links/clearinghouse/readyref/index.htm

Johns Hopkins University
http://www.library.jhu.edu/researchhelp/general/evaluating/

University of California Berkley
http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/Evaluate.htm

Quick http://www.quick.org.uk/

I.Q Tool http://hitiweb.mitretek.org/iq/iqmain.asp