This site is not recommended for commercial use to verify physician credentials.
Detailed statistics are available with a paid subscription.
Big Yellow - Bell Atlantic's online version of the Yellow Pages. Coverage for the U.S., with links to international searching. Note that you will be required to register with the site in order to fully use services, but registration and all use is free. United States Government Sources - the Virtual Library's link to all government branches, departments, independent agencies, and government related sites. Publishing PubList - a searchable directory of over 150,000 U.S. and international periodicals in print or electronic format.