Once in the spotlight for "dropping out" of college under the tutelage of billionaire Peter Thiel, Eden Full, 21, is now a junior at Princeton University who is still busy refining her big idea for end users.
Buy a pair of Thinx and you'll be putting on underwear that looks good and is ingeniously designed. More importantly, perhaps, you'll be helping girls in Africa to not let their periods disrupt their lives. Here's the story behind the social innovation.
10-year-old Talia Leman started her career by organizing to raise money for victims of Hurricane Katrina. She's grown up, and so has her business, which now offers a platform for kids to make their own change.
The Extra Mile lets you donate unused frequent flyer miles to help people be at the bedside of sick family members. For founder Matt Dimmer, its creation was part of the grieving process--and then became so much more.