Viacom's MTV Networks has agreed to distribute clips from its cable networks over Google's advertising network, in a test of what could become a new economic model for Web-based video delivery, the companies said Sunday.

The project, a year in the making, marks the first time Google will distribute ad-supported videos across its AdSense network from a major programming provider. The ad-supported video distribution project will begin testing later in August.

Google's AdSense network currently handles primarily text and graphical-oriented brand advertising. The MTV trial, if successful, would highlight the progress Google is making in evolving beyond its reliance on delivering Web-based text ads from which it derives most of its revenue and profit.

Find out more about the deal between Google and MTV regarding Adwords advertising at ZDNet News.