Online entertainment flexes its muscle in 2012

Kevin Hart, right, presented the award for video of the year to Rihanna for "We Found Love" at the MTV Video Music Awards on Sept. 6, 2012, in Los Angeles. Welcome to the world of online entertainment, where the interaction between fans and artists created a whole new dynamic in 2012. Ever-evolving technology and the subcultures that grow up around it resulted in some of the year’s most fascinating stories on the Web and social networks.