Google announced on Tuesday an expansion of its AdSense advertising program to include mobile search ads.

Publishes can co-brand a search box
The initiative is a second step toward bringing Google ads to mobile phones and portable handheld devices.
In September 2007, the Internet search giant brought out AdSense for mobile content, a program for network operators and mobile Web site owners to place Google ads alongside their online content.
Now its has expanded the offering to include search, according to a blog entry.
“AdSense for mobile search is a quick and easy way for carriers and mobile publishers to embed a Google search box on their mobile portals and web sites,” said Yury Pinsky, a Google product manager. “Mobile operators and website owners share in the ad revenue generated by searches originating from their sites.”
Web pages can even be co-branded with a publisher’s logo.
Google said it was taking applicants for a beta-testing program and would conduct private briefings at the Mobile World Congress in Barcelona next week.