The Internet Advertising Bureau (IAB) in conjunction with PricewaterhouseCoopers (PwC) released online ad revenue figures for the first two quarters of 2006, showing a 37% increase year-over-year for the same period. The first half of 2006, revenues from online ads were $7.9 billion. Search counted for approximately 40 percent of those figures, at $3,164 million. Like in the past, they do not break out contextual ads from search ads.
A ClickZ story says that in a separate report, by eMarketer reports all of this year will be worth 15.9 billion. In short, growth is still strong at 26.8 percent but down slightly from last year at 30.3 percent.