Research has shown that cancer in patients with traveling cells progresses faster and more extensively than in patients who don't have such cells.

FORBES: On The Cover/Top Stories

As the Entrepreneurs Challenge progresses in coming weeks, the YellTimbre group plans to perform some consumer research to see what other music lovers are looking for in a social music site, including talking to people waiting in line for concerts around the city, Stock said.

FORBES: Group of Freshmen Aim To Create Artist-Centric Social Media Site