Search Ad Providers Gaze into their Crystal Balls

Is search advertising slowing down, or just getting started? What new distribution channels are likely to open up in the coming months? Will traditional ad agencies dominate the business? And just how big a problem is click fraud, anyway? Answers to these and many other questions from executives from Google, Yahoo, AOL, MSN and IAC in today's SearchDay article, Divining the Future of Search Advertising.