3 ms·
Quizlet (http://quizlet.com/about/ http://quizlet.com/about/) seems to be successful and is run by a teen. I'm not sure if they've taken funding though.
by kobs 18y ago
Quizlet (http://quizlet.com/about/ http://quizlet.com/about/) seems to be successful and is run by a teen. I'm not sure if they've taken funding though.