Meet 30 Cool Young Entrepreneurs

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5 of 30

Sachin Agarwal and Garry Tan

Making blogging as simple as sending an e-mail is the goal at Posterous, a San Francisco start-up. The company developed technology by which users can automatically create a Web page when they send a post, a picture, or a video to post@posterous.com. The business has raised more than $5 million, and is backed by Y Combinator, the prestigious incubator. Agarwal just turned 30; Tan is 29. Read more.