GenderAnalyzer uses Artificial Intelligence to determine if a homepage is written by a man or woman. Although the service is still under beta stage, the results I got from it was pretty accurate.

This service uses a text classifier (API from uClassifier.com) that has been trained on 2000 blogs written by men and women.

Right Guess
We think http://felixker.com is written by a man. [No doubts]
We think http://ritzilystylish.com is written by a woman. [True]
We think http://blog.adolflam.com is written by a man. [Of course]
We think http://shanewong.com/blog/ is written by a man. [I'm certain Shane is a man. Right, Shane?]
We think http://shermianz9.blogspot.com is written by a woman. [True]
We think http://searching-4-u.blogspot.com/ is written by a woman. [Right!]
We think http://chau-chau-chau.blogspot.com/ is written by a man. [Yes.]

Not so right
We think http://ceedie.blogspot.com/ is written by a woman. [I'm sorry Ceed, but I expected this.]
We think http://trying-to-find-a-life.blogspot.com/ is written by a woman. [Bosheng is women?]

And, lastly pages that threw an exception.
http://drkmatter.blogspot.com/ [An error occurred | Sorry, we can only classify web pages written in english] [P.S Derrick, write in English please.]

My two pennies
The results I got wrong may be due to the kind of style a person wrote their blogs in. I wouldn’t say this service is unreliable, neither would I say that one can rely on it. Maybe just for fun.

Give it a try to have some fun. =)