"I've been thinking a lot about the current physical location of Silicon Valley. The Valley has moved. About a year ago, Richard Florida did a fascinating piece of analysis where he geo-located all the current venture capital investments. Once upon a time, the center of Silicon Valley was in Santa Clara. Now it's moved fifty miles north, and the current center of Silicon Valley by current investment is at the foot of Potrero Hill in San Francisco. Living in San Francisco, you see that. Manufacturing, which is what Silicon Valley once was, has largely moved to Asia. Now it's this marketing and design center. It's a very different beast than it was." http://edge.org/conversation/john_markoff-the-next-wave