U.S. Internet advertising revenue grew 26 percent to $3 billion in the second quarter, driven by paid search listings and more sophisticated video and audio ads known as rich media, according to a study released on Monday.

The data provided by the Interactive Advertising Bureau and PricewaterhouseCoopers bolsters expectations that advertisers are spending more on the Internet as consumers devote more time to the Web and away from other media.

Online ad revenue in the first half of the year also rose 26 percent, to $5.8 billion, from a year earlier

Source: Reuters