This article has some interesting findings about perceptions of men and women in the workplace. Here's an excerpt from one study discussed in the article:
"Women perceived as being more competitive were deemed competent for the job but also less sociable than other candidates, and thus less hirable. Competent men, however, were described as hirable even if they weren't socially adept."
I guess we have to recognize false stereotypes before we can kick them to the curb, so pointing them out, while depressing, is part of the battle.
Interestingly, the end of the article says that "women are considered better managers than men." I wonder... if the initial bias above didn't exist in the hiring process, maybe this managerial difference would evaporate as well.