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Scenes from DemoFall 2009

Entrepreneurs, press, and VCs cram into the Sheraton in San Diego to do business at the semiannual start-up event.

Twice a year, well-funded entrepreneurs face off with venture capitalists and the press at Demo events. DemoFall 2009 is currently under way in San Diego, where 70 companies are pitching their new products or strategies.

Here's a walk-through of the main pitch sessions and the Demo Pavilion, where the deals start to take shape. Click on a picture for the full slideshow.