non-partisan right-wing liberal libertarian Think Tanks and Policy Institutes conservative Think Tanks Think Tanks & Policy Institutes their known political affiliations http://www.citizensource.com/Opinion&Policy/ThinkTanks.htm http://www.citizensource.com/Opinion&Policy/ThinkTanks.htm Think Tanks and Policy Institutes http://www.citizensource.com/Opinion&Policy/ThinkTanks.htm left-wing conservative