HUFFINGTON POST - Feb 15 - Combosaurus, the website that launched in beta last month, tests all the data entered into OkCupid by users to see what clusters together. "OkCupid collects extremely sensitive ... medical conditions, drug usage, and sexual preferences," Rainey Reitman, activism director at the the Electronic Frontier Foundation. "Users who share this information are doing so to find relationships, likely not realizing the data will be mined for marketing purposes." "Of course it has advertising potential," said Yagan, who noted the team is still figuring out precisely what they're going to do with the product. "This is a treasure trove. Knowing what things are correlated with what. For instance, when someone buys an iPhone, what are the other 10 things they're likely to want to buy?"