Behavioral targeting of advertising and content is increasingly common online. By analyzing search terms in a session, documenting content types visited, or employing other approaches, sites try to deliver material that fits interests they believe they can deduce from online behavior.

But do you browse like a boy or a girl? A cute little application analyzes your browser history and guesses your gender.

Give it a try. It seems like harmless fun, and it does open a door into the realm of behavioral targeting, revealing a bit about accuracy and privacy.