I've wondered about this...what is safe to publish online? To post or not to post, that is the question. Whether it be blog, online critique group, or online journal, what is considered "published" and how can that affect your contract with traditional publishing avenues.
Well, here's the answer my friends in one conscise explaination. Moonrat from the "Editorial Ass" answers it so eloquently in his blog entitled, What's Safe to Syndicate Online": http://editorialass.blogspot.com/2009/05/whats-safe-to-syndicate-online.html