There is a new PNAS paper of interest: “How stereotypes impair women’s careers in science“.  It just came out a few days ago and has general a bit of press including these stories:

• John Bohanonon in Science: Both Genders Think Women and Bad at Math
• Mark Prigg in the Daily Mail: Can women do math? New study finds both sexes believe men are better – regardless of a person’s actual ability

Basically, in the study the authors created an “experimental market” and tested how people “hired” subjects to perform an arithmetic task.  And they found that both women and men were more likely to choose men for the task, even though both genders were expected to perform equally well.  It is worth looking at, though I am by no means expert enough in the methods used to know how sounds it is.