We think http://www.myalpinepath.blogspot.com is written by a woman (65%).
Since my research involves quite a bit of neural networks and their applications, I am really curious to see all the attributes that the NN behind this site used. Also, I plugged in some of the blogs of my friends and it gave an accuracy of 85%(among 15 to 20 people) and that's not bad! (Ok! Getting out of the report writing mode...). Try it out, its fun!