Wired photographer Dave Bullock came to ETech this year and shot portraits of some of the participants:

O’Reilly’s Emerging Technology Conference brings some of the brightest minds in the online world together every year for four days of talks, panels and workshops. ETech is really about ideas and the people behind them, so we wrangled a sample of willing geniuses and made them pony up some mug shots and tell us their latest projects.