Internet advertising revenues reached almost $5.9 billion for the third quarter of 2008, representing an 11 percent increase over the same period in 2007. While double-digit annual growth continues, the quarter-to-quarter curve remains relatively flat compared to recent past performance. The Q3 2008 figures, published in the IAB Internet Advertising Revenue Report, are 2 percent higher than the Q2 2008 results. Set against strong economic headwinds in the U.S. economy, Q3 '08’s $5.9 billion represents nonetheless the second-highest quarter results ever. For the first nine months of 2008, revenues totaled $17.3 billion, up from $15.2 billion in the same period a year ago and surpassing the record set in the first nine months of 2007 by nearly 14 percent.