Organizations and Websites: Research Tools 
Recommended
Free Trade, Free Markets: Rating Congress
This interactive web site allows users to examine how Congress and its individual members have voted over the years on bills and amendments affecting the freedom of Americans to trade and invest in the global economy.
Public Choice
"Public Choice studies the intersection between economics and political science. The journal plays a central role in fostering exchange between economists and political scientists, enabling both communities to explain and learn from each other’s perspectives." Now available online.
Econ Journal Watch
"The electronic triannual Econ Journal Watch publishes Comments on articles appearing in economics journals and serves as a forum about economics research and the economics profession. EJW watches the journals for inappropriate assumptions, weak chains of argument, phony claims of relevance, and omissions of pertinent truths."
StateMaster
StateMaster is "a unique statistical database which allows you to research and compare a multitude of different data on US states."
PolicyBot
"PolicyBot is the Internet's most extensive clearing- house for the work of free-market think tanks, with more than 17,000 studies and commentaries from over 350 think tanks and advocacy groups."