A study conducted by eMarketer along with research data from a separate report released by Interactive Advertising Bureau and PricewaterhouseCoopers show considerable decline in online ad spends.  Reported by Adweek, IAB and PwC found that online ad revenue slid by 5.3 percent year over year in the first half of 2009.  One bright spot was a surprisingly low one percent decline in display ads.  There is general optimism that the slide will decelerate in the second half of the year as more ad budget is diverted to low-cost display and direct response tactics.

Read more at Adweek {link no longer active}.