I think that it might be useful to create a list of related communities online that people might want to check out. Suggestions much appreciated.
Directly Related to rationalism
Skeptics Stack Exchange - useful for confirming factual claims you are skeptical of. Requires specific, answerable questions
Straight dope - similar to Skeptics, but less strict on the questions accepted
Change my view - place to get your view challenged
Cognitive Science - you are expected to do your reading first, but useful if your want to lean about what the research says
Rational Wiki: I only just learned about the existence of this site, so I don't know how good it is yet