"It's also got great potential business -- if Explore works, we're sure plenty of restaurants and bars would pay to be at the top, just like they might pay to be at the top of a
Google search, which essentially fulfills the same function." According to Foursquare's engineering blog, Explore began as a simple experiment. "Even more interestingly, Explore
doesn't just give you places to visit, but why you should visit them: for example, how many of your friends have been there or how many times you've been there before, potentially making it even more
compelling."