It's lunchtime at a company called LifeSize in Austin, Texas. A dozen employees are playing beach volleyball on a sand court next to the parking garage behind their offices. Corrine Heery, a 28-year-old financial analyst, says she loves the "midday endorphin rush." And that it enhances her bragging rights when discussing her work with friends. "It's not just the business side, it's this side too — people getting along and playing fun sports," she says.