I just read this article and I'm not really surprised. Why aren't there many women writing for Letterman, Leno, or O'Brien? Could it just be because a joke a man could pull off, couldn't be pulled off by a woman? Men and women think different. And, heck, if there's no career path, why would they stay?
http://www.ivillage.com/women-arent-funny-says-who/1-a-62147?ice=iv:mb:msg:ww
I think some people think I'm pretty funny - too bad I'm not trying to be. Hehehehe