I've been reading The Difference Blog on Livejournal for a few months, and I'm embarrassed that I haven't blogged about it before now. The Difference Blog is "written by dan4th. Dan4th is a 30 year old, female-to-male transsexual. He lived as a woman for the first 26 years of his life, and as a man for the past four."

On his blog, Dan4th gives short summaries of studies of sex and gender variation, often citing studies that give conflicting or contradictory results. He follows these brief summaries with a paragraph of commentary on his experience as a transman.

What's great about The Difference Blog is that I can be lazy and get pointers to some pretty interesting studies, and I get an interesting perspective by way of his personal comments. Check it out.