I live in the bible belt in the US, atheism is a major taboo. On the internet I occasionally feel like atheism is normal and just another accepted demographic, but that's largely because I hang around places with lots of atheists. Then I see the other side.
This is an op ed article that Atheist Jerry Coyne wrote today, it's on how you don't need god to be good. It's a fine article, not his best writing, but given the brevity of the article he gets he point across.
http://www.usatoday.com/news/opinion/forum/2011-07-31-atheism-morality-evolution-religion_n.htm
The hard part to read is the comments where most commenters imply that atheists are ammoral nihilists who know god exists but deny it because of our wickedness.
Or this snap shot of the fox news audience
where the fox news facebook page is quickly overtaken by violent threats against atheists after one appears on fox news.
Any time I get comfortable being an atheist I am quickly reminded that most of the people in the country I live in are still extremely prejudiced against people who don't share their religious beliefs. For that reason I am still extremely wary of telling some one that I don't believe in gods in real life.
I am thankful I'm not being tarred and feathered, or curb stomped like minorities in the past, and I certainly don't think I have it as bad as minority demographics in the past have had it. But when I hear people complain about militant atheism and how horrid it is I think of the comments pages on Richard Dawkins website, or PZ meyers or jerry coyne's and notice the distinct lack of violent threats.