US Internet advertising revenues grew more than 26% to about $10 billion in the first six months of the year, according to a study, quoted by an Associated Press report.
The Associated Press report also said keyword ads, such as those displayed alongside search results at Google and other search engines, remain the most lucrative, accounting for about 40% of online revenues.
Display ads made up 21% of total revenue and classifieds had 17%. Other formats include video, email and sponsorship ads, the report said.
The figures come from a PricewaterhouseCoopers study conducted quarterly by the Interactive Advertising Bureau, an industry trade group.
Despite the growth, online ads remain a small part of overall advertising spending, although the Internet is widely expect to command more of the marketing dollars now going to television, print and other traditional media, the report further said.