There was recently an utterly fantastic post on Skepchick which hit the nail on the head in far too many ways to mention:
My instinct is that if we just keep on being ourselves, unapologetically, things will change. I think things are changing, but socialized norms are tricky things to overcome. Also I think it is crucial that we talk about these things. Making skeptics of all genders examine critically how they think about these issues can only help root out previously unrecognized stereotypes and prejudices, and, hopefully, lead to a more diverse movement.
The comment thread very much does justice to the quality of the original entry, which is unsurprising - Skepchick is always a great source of open, intelligent debate. One comment did remind me of something which I would like to share with you all; you may have seen it already - it did the rounds on the internet a little while ago - but it cannot be viewed too many times. If you needed more convincing that Joss Whedon is a man worth his weight in gold, hearken ye well: