Paradoxically, as Google's influence over the advertising industry grows by the day, the number of advertising startups increase. It's the way of the startup world that as the incumbents grow larger, so too does the opportunity for the nimble enterprise (Unless that nimble enterprise was trying to develop desktop applications from 1990 to 2004).

One innovative new online advertising startup is called Turn. The CEO is experienced, the technology is differentiated and the market is big and growing. That's why the company was able to raise $18 million over the course of two rounds from Norwest Venture Partners, Trident Capital and Shasta Ventures. It's been operating in stealth mode until today, when it launched with 5 million ads, 21 million unique users and 30 parge publishers already signed up.

I spoke to CEO Jim Barnett today at the Web 2.0 Summit in San Francisco. Watch the short (and interrupted) interview below:

Tags: turn, search, web2, web20summit, web20summit06, vc, venture+capital