A commenter to a previous post noted that several members of the Ohio Freedom Alliance were members, or influenced by the publications of, the John Birch Society. While I agree with him that the JBS takes some rather peculiar positions on personal liberties; in general, I find that they have been unfairly maligned for wanting to move toward a system more consistent with the design of the United States Constitution. That said, I have never been a member of the John Birch Society, and I have no desire to join.
The Ohio Freedom Alliance is a separate organization, bringing together individuals from diverse backgrounds in support of political projects to strengthen the role of the US Constitution in modern politics. It was inspired by Ron Paul's movement, with which I mostly agree.
I find that I am somewhat less libertarian than the OFA, being perhaps more suspicious of human nature when left completely unregulated by government.
Update May 18, 2009: I have also found that the John Birch Society's reporting of facts is usually correct.