A great place to find people concerned with Liberty and the 1st Amendment and unconcerned with political cynicism. Amnesty International - I'm a member primarily because of their work against capital punishment, but their worldwide support of human rights is admirable. The American Prospect - A magazine for when you feel like being extremely intellectual. My subscription expired, but I'm not going to throw away those back issues. The American Civil Liberties Union - I personally believe that most of the Amendments and even a lot of the Constition itself are superficial when compared to the 1st Amendment .
Free speech can only lead to democracy and is a prerequisite for liberty.
Here's a link to Yahoo's laundry list of environment related links. I like environmental policy as a topic of debate with conservatives, because it's one of the areas in which they have absolutely no defensible position. The reactionary nature of politics is a huge detriment to proactive approaches to environmental protection. The failure of Congress to embrace a strong policy to prevent global climate change is a good example. For those of you who know who RATM is or who don't quite get why I'm putting them here, let me explain.