I just saw esse post Tecnoblog on this site that deduces whether you are male or female analyzed the history of your browser.
Basically what it does is analyze your browsing history via a script, cross your data with a list of most visited sites in the United States, with the profile of visitors, in other words, data indicating whether the site is more seen by men or women.
I was happy to know I've been visiting only male site and therefore the script concluded with 100% I am sure man. 🙂
Follow the result:
Likelihood of you being FEMALE is 0%
Likelihood of you being MALE is 100%
Interestingly site has that list that not remember having accessed or accessed a long time ago, while lacking others it certainly recently accessed (perhaps because they are not in the list for which the data are crossed).