I've written just a few editorials about subjects relevant to atheists for publication on Associated content but they seem to get a huge response. Some of the discussions in their comments are more entertaining than the articles themselves!
I was a little afraid to post anything that made it clear I'm an atheist for fear of getting bashed, possibly physically again but I went ahead and started doing so about a year ago on another site. I've gotten plenty of nasty pm's and emails but nothing I can't handle.
Automatic God Belief and the Almighty Milky Teat
Where Morality Comes From, One Atheist's Opinion
Does Life Have Meaning Without God?
Two of these have some fun discussions going on in their comments, too. One of those commenters is a person who regularly messages me to tell me I MUST believe in God.
It would be a great help to me if you would visit any of these articles and leave a comment or two on AC. I think it's great when atheist topics end up on the most discussed list on Associated Content - or anywhere else, really.