Overall, I like much of what the Independence Institute does and I'm glad they are here in Colorado.
One way to find similar organizations in your state is through directory listing of the State Policy Network (search by state in the pull down menu.) Of course, you should do your due diligence to ensure that your state/regional think tank supports your values. But if they do, Scandlen notes that you can help by contributing money as well as expertise.
The states are going to be key battlegrounds in the fight for American freedom. There's never been a better time to jump into the fray!