Internet advertising revenues for 2007 are estimated to have reached $21.1 billion, a 25% increase over the previous revenue record of nearly $16.9 billion for full-year 2006, according to the Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers (PwC).
Fourth-quarter 2007 revenues totaled approximately $5.9 billion, the highest ever reported for a quarter – and 13% more than in 3Q07 and 24% more than in 4Q06, IAB said.
All four quarters in 2007 set new internet ad revenue records, according to the estimates.
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.