New York—Internet ad revenue reached $7.9 billion in the first six months of the year, up 37% over the first half of last year, according to the Internet Advertising Revenue Report from the Interactive Advertising Bureau and PricewaterhouseCoopers.
According to the report, online advertising revenue totaled $4.1 billion in the second quarter, up 36% from the year-earlier period.
Search revenue made up 40% of total online advertising revenue in the first half, followed by display ads (30%), classified advertising (20%), referrals/lead generation (8%) and e-mail (2%).
CPM-based pricing represented 48% of online advertising in the first half, performance-based pricing made up 47% and hybrid models contributed 5% to the total.
The report was released Monday at the MIXX Conference in New York.