Likelihood of you being FEMALE is 47%
Likelihood of you being MALE is 53%
Okay, score one for them... but the results only analyzed 4 sites... one of them was NOT MR... a number of other sites that I regularly visit (including in the past 24 hours) were not in the results... and one of the sites that was listed was a pop-up ad. Not even vaguely representative of my browsing history or patterns.
I suspect the fact that my browser goes through a firewalled office system may be skewing the results...