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Think Tanks, Public Policy Groups, and Advocacy Groups


Search Think Tank Sites

There are several publicly-available search engines devoted to think tanks and other public policy organizations and the most comprehensive is the following, which searches over 700 sites:

Classified Lists of Important Think Tanks

The following two resources appear to be comprehensive and authoritative lists of think tanks and similar groups.

Think Tanks as Research Fodder

The work of "think tanks" can provide valuable research on policy issues, but how interest-free is that work?   Some nonprofit organizations are clearly advocacy groups, but others at least appear to be non-partisan.  Two views: