The Top 100 Startups in LA
symmetry50.com
symmetry50.com
Possibly the only business that sounds like it's breaking new ground is uBeam ("beams power through the air to wirelessly charge electronic devices"). I scanned quickly, so maybe there are more.
Certainly great fortunes have been made by simply selling on the web stuff you used to buy in a store (Amazon for example). It might be the economic reality, but I still can't help but feel sad that the top 100 startups--and all the creative energy and capital--are overwhelmingly prosaic and ordinary small business.