30 AND UNDER: Rising Stars In Silicon Valley Who Find Hot Startup Deals And Invest Millions

When you're a venture capitalist investing in startups, it takes about seven years to know if you're doing a good job or not. That's how long it generally takes for a startup to exit and for you to know if you made a great investment or put money into a major flop.

There are a bunch of 20-somethings in Silicon Valley who are helping source deals for their firms. They're taking board seats and being handed millions of dollars to find the best new companies around.

A few 20-somethings have left traditional firms and raised tens of millions of dollars for their own funds.

We rounded up a list of people who have already accomplished a lot in the Silicon Valley startup scene. If they keep at it, they could become the next Ron Conways, Fred Wilsons, and Bill Gurleys. Who'd we miss? Leave names in the comments.