Online advertising sales topped $2.2 billion in calendar 2010 and is on track to hit $3 billion by 2013, a report says.

Hewlett-Packard plans to use Yahoo's advertising network in a pilot program that will deliver targeted advertisements for content printed with its latest line of Web-connected printers.

Google today attacked Apple's apparent decision to ban some third-party ad networks from collecting ad performance data on the iPhone and iPad.

A mobile advertising company has written a JavaScript library that makes Flash advertisements viewable on devices such as the iPad, working around Apple's opposition to Adobe Systems' multimedia platform.

Online advertising spending grew 7.5 percent in the U.S. in the first quarter, a clear sign that the digital media industry is recovering from a rough 2009, according to the Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers (PwC).

The U.K.'s competition authority launched two studies on Thursday that will probe behavioral-advertising pricing strategies and if some pricing practices could potentially mislead consumers.