Internet advertising revenue for 2005 exceeded $12.5 billion, a 30% increase over the previous revenue record of $9.6 billion in 2004, said the Interactive Advertising Bureau.
Fourth-quarter 2005 ad revenue totaled a record $3.6 billion, making it the second consecutive quarter to surpass the $3 billion mark and the highest quarter reported, the two organizations said. Fourth quarter revenues represent a 35% increase over the same period in 2004 and a 17% increase over Q3 of 2005, said the IAB. The 2005 fourth quarter and full year online ad revenue figures were estimated by surveying and aggregating data from the top 15 online ad sellers. The results were then extrapolated to calculate the total estimated industry revenue figure. Actual third and fourth quarter results will be reported in the full 2005 Internet Advertising Revenue Report, expected in April 2006.
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