Free wi-fi can motivate people to hang around . . . just look at any Starbucks in any city on any given day. Dare we say it's more motivating, than oh, I don't know, the threat of cancer? Apparently so, because The Peruvian League Against Cancer's giant tower at Playa Agua Dulce was a huge success in drawing sun worshippers in to its shade for free wi-fi. So, it seems free wi-fi can do what many many years of cancer PSAs cannot. Hey, whatever it takes!