This site determines who is writing that blog or article
Heres the results for some sites I ran through it
We think http://www.chrisandmeganbrewer.com is written by a man (72%).
We have strong indicators that http://www.higherground4x4.com is written by a man (96%).
We have strong indicators that http://www.postsecret.com is written by a woman (94%).
http://genderanalyzer.com