Google (s goog) is expanding its AdSense web advertising service to mobile today with the beta launch of AdSense for Mobile Applications, which allows iPhone and Android developers to display text and image ads on their mobile applications and earn revenue. Google has been testing out the new mobile product with developers such as Urbanspoon, Sega and Shazam since March and is now opening up the AdSense mobile product to other developers.
“We’re excited to open up this beta to more developers, and look forward to offering new features for our mobile advertisers and publishers in upcoming releases,” said Google VP of Product Management Susan Wojcicki in a statement.
The search giant’s move may cause trouble for smaller mobile advertising startups, such as AdMob. It will be hard to compete for developers’ attention with a large competitor like Google, whose AdSense service is already well-established in the online advertising sphere. AdSense was officially launched in 2003.
Google set up a site for developers to sign up to participate in the product’s beta testing. To check out a video of Urbanspoon’s director of business development, Howard Steinberg, talking about the company’s experience using Adsense, see the product’s official announcement on the Google Blog.