Sunnyvale, California, is pretty much ground zero for high tech in the U.S. and Silicon Valley. The small city is 40 miles south of San Francisco and is the home of companies like Apple, Google, Yahoo!, and LinkedIn. You'll also find aerospace giants like Lockheed Martin and Northrop Grumman and NASA's Ames Research Center. What does a public library do in such a place? The answer may surprise you. Plus, they have discovered a low-cost way to start up a multimedia lab. Meet Sunnyvale Public Library.