Open Questions: Gender Differences and Psychology

The Science of Gender and Science: A fascinating "debate" between two very high-profile psychological scientists, Steven Pinker and Elizabeth Spelke. This is a must-read. See also the follow-up remarks by several other top experts.
Sex Differences in the Brain: May 2002 Scientific American sidebar, subtitled "Men and women display patterns of behavioral and cognitive differences that reflect varying hormonal influences on brain development."
Gender, Science & Cognition: Brief page by Kevin Dunbar on his research.