John Batelle leads Matt Freeman, Don Friedman, Peter Horan and Lauren Wiener in a discussion about "coopetition" in the new marketing ecosystem.; John Batelle leads Matt Freeman, Don Friedman, Peter Horan and Lauren Wiener in a discussion about "coopetition" in the new marketing ecosystem.; Matthew Wise leads Heidi Browning, Bill Gossman, Jay Krihak and Joe Kyriakoza in a frank discussion on behavioral targeting.; Matthew Wise leads Heidi Browning, Bill Gossman, Jay Krihak and Joe Kyriakoza in a frank discussion on behavioral targeting.; Michael Wolf moderates a fiesty discussion between Patrick Keane, Michael Rubenstein, Jim Spanfeller and Bill Wise on Ad Networks and Exchanges.; Michael Wolf moderates a fiesty discussion between Patrick Keane, Michael Rubenstein, Jim Spanfeller and Bill Wise on Ad Networks and Exchanges.; Full panel discussion content from the IAB Annual Meeting - Ecosystem 2.0 – Driving Growth in Digital Marketing. Phoenix, AZ, Feb 24 - 26, 2008