U.S. Internet ad sales reached $2.2 billion in the fourth quarter, up 9 percent over the third quarter, and $8.2 billion for the year, a new study shows. For the year, ad sales grew by 78 percent over 1999, according to a quarterly report released by the Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers.
The figures reflect a steadying in the online ad market after years of unprecedented growth. Since it began tracking ad sales in 1996, the IAB has reported a total of $15.9 billion in revenue. Year over year, revenue has typically jumped by triple digits; for example from 1998 to 1999, annual sales ballooned by 141 percent.