Meet the 30 Under 30, Class of 2012

Courtesy Company
29 of 32


While in YCombinator last summer, Zach Sims wanted to improve his programming skills. Ryan Buminski wanted to teach. In three weeks they launched Codecademy, a site that teaches programming languages. By the end of 2011, the site had more than a million users. One of them could soon be New York City mayor Michael Bloomberg, who recently announced he wanted to learn to code. Read more