Answered By: Keely Wilczek Last Updated: Sep 14, 2016 Views: 28
Start with our Think Tank Search. This Custom Google Search allows you to simultaneously search more than 600 think tanks and research centers worldwide. This page also links to relevant articles about think tank transparency and rankings.
You can also try PolicyFile which provides abstracts of and links to domestic and international public policy issue published by think tanks, university research programs, & research organizations.