MobileNest

Google started testing AdWords for mobile devices displaying ads in listings of Google’s search results. The advertisement tests were launched in the United States and the United Kingdom.

Similarly to AdWords for web, the ad format as well as marketing campaign detail can be directly managed by the user. AdWords mobile users can select one of the two supported paid advertisement types: pay per click and pay per call.

In the pay per click ads, the user is charged for a referral when a consumer clicks the ad. In the pay per call ads, the user is charged when the consumer calls a toll-free number.

Google Takes AdWords Mobile In U.S., U.K. [InformationWeek]