I've slowly been getting more involved in the local free-thinker community here in Vegas.
A site for people interested,
http://www.secular.org They're striving to bring light on non-theistic viewpoints regarding governmental issues.
The Secular Coalition for America is a lobbying group representing atheists, secular humanists, and freethinkers in American politics. It's currently represented in Washington, D.C. by Lori Lipman Brown, who I got to see speak a couple weeks ago.