IAB Ad Revenue Report Shows Mixed Trends

ClickZ comment on the IAB/PWC report that it's official: Spending on Internet advertising continues to climb -- year over year -- reaching $5.8 billion for the three-month period ended March 31, 2008, according to a report released Tuesday by the Interactive Advertising Bureau. That represents an 18.2 percent increase over the same period in 2007, when digital advertising revenue totaled $4.9 billion. Compare the data another way, though, and there's a sign of slippage. Internet ad revenue dropped 1.7 percent compared to the record breaking $5.9 billion tally for the last three months of 2007. More here.