As a teenager, Tumblr CEO David Karp would canvass the streets of New York City's Upper West Side, offering to build websites for local businesses. After his freshman year of high school, the precocious, computer-savvy kid decided to drop out altogether to devote more time to his passion for technology. A few years later, Karp built Tumblr -- the wildly popular blogging forum -- from his tiny ...

As of January 1, 2012, California state law added a 10 Day Temporary Entertainment Work Permit for minors. The following is a general guideline of the state, country, and union labor laws for child performers, including how to apply for a permit and open a trust account.