7. Diwank Singh Tomer keeps busy by working on a range of ideas. His site lets you see a selection of his pitches and vote on which ones you think are good ideas.
Click here to see some of Diwank's startup pitches.
You can also check out his portfolio site. While it still has the link, it seems he has changed his Twitter handle from "meetdagod."
6. William LeGate began developing apps at 13. Now 19, he's hoping to "revolutionize the way we discover and use apps" with his new startup, Synapps.
5. Andrew Brackin is 19 and looking to fix parking in San Francisco.
A former Londoner, Andrew has relocated to California to be one of this year's Thiel Fellows. His startup, Spot, aims to make it easier to get parking in San Francisco.
4. Kevin Petrovic dropped out of Princeton to found a company that's taking on traditional rental car companies.
FlightCar lets travelers park their car at the airport and rent it to others while they're away. It's like AirBnb for your car.
Speaking of which, FlightCar has raised $6.1 million in capital from notable investors including a few of the founders of AirBnB and Reddit. It's also backed by Y Combinator.
3. Delian Asparouhov dropped out of MIT to make a service that helps patients and caregivers remember to take/give medications.
Delian created Nightingale, his service for keeping track of medication schedules, while studying at MIT.
He then dropped out upon receiving a Thiel Fellowship.
According to his blog, he's currently working as a developer at Square and serving as a partner at Rough Draft Ventures, a venture capital fund that invests in student tech entrepreneurs in Boston.
2. Ritesh Agarwal is revolutionizing accommodations in emerging economies by providing tech-enabled inns and affordable hotel alternatives.
Amazingly, Ritesh founded both OYO Inns and Oravel when he was only 16 years old. At 19, he's still serving as the CEO of both companies.
1. Nick D'Aloisio sold his company to Yahoo for $30 million earlier this year.