This blog post is completely full of win. Money quote:
"If you want to criticize atheists, individually or as a movement, please do. We're not perfect, and the current incarnation of our movement is fairly young, with all the flaws of a young social movement.
But don't spread lies about us. Don't fearmonger about us. Don't assume that you know who we are without listening to what we have to say.
And don't criticize us in ways that are just meant to shut us up.
Via Friendly Atheist.