How the Web Will Make Winners and Losers in 2011

A year ago, hardly anyone was expecting Angry Birds or Groupon to be among the stars of 2010, but the underlying trends that powered their success were plain enough. So while it's nearly impossible to accurately predict what the next big hits will be, here are five trends that may help separate 2011's winners from its losers.

Investors Check In for Location-Based Deals

The idea may seem somewhat silly, but location-based services, such as Foursquare, Gowalla and Loopt, are likely to be enormous. And investors are racing to get a piece of the action, which will escalate valuations.