The Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers (PwC) revealed that Internet advertising revenues for 2007 are estimated to grow to $21.1 billion, a 25 percent increase over the previous revenue record of nearly $16.9 billion for full year 2006. Q4 2007 revenues totaled approximately $5.9 billion, making it the highest quarter ever reported and representing a 13 percent rise over the third quarter of 2007 and a 24 percent increase over the fourth quarter of 2006. All four quarters reported in 2007 include record level revenues.

The IAB sponsors the Internet Advertising Revenue Report, which is conducted independently by PricewaterhouseCoopers. The full report is issued twice yearly for full and half-year data, and top-line quarterly estimates are issued for the first, third and fourth quarters. Fourth quarter and full-year online ad revenue estimates result from surveying and aggregating data from the top 15 online ad sellers, and then extrapolating those to calculate the total estimated industry revenue figure.

Actual third and fourth-quarter results will be reported in the full 2007 Internet Advertising Revenue Report, expected in May 2008. PwC does not audit the information and provides no opinion or other form of assurance with respect to the information.

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