launches travel deals, but do your own math first

Jason Cochran
chichen itza ruins outside of Cancun
chichen itza ruins outside of Cancun

LivingSocial, a website that offers city-specific pop-up deals based on group participation, has thrown travel deals into the mix.

Although deals on the site are normally available for only 24 hours, the travel deals, which it calls "escapes," will be offered for a week at a time. Also unlike the normal deals, anyone can grab them without a minimum number of participants. Another perk: If customers can get three of their friends to book the same deal, theirs is free.

That's all good news. Now for the warning: Not all of these deals are the cheapest you can do. Take, for example, the current four-day air-hotel package from New York City to El Tukan Hotel & Beach Club at Playa del Carmen, outside of Cancun.