I stumbled on this "Gender Genie" thing, and it's pretty neat. You feed it a portion (preferably large) of your writing and it tells you, based on some algorithm junk and words, whether it thinks you're male or female.
http://bookblog.net/gender/genie.php I did it several times and got both genders--my scores were always EXTREMELY close for both male and female, sometimes by only a few points, which to me says that this thing works XD.
I'd love to hear what it says about you guys, to further assess its accuracy.