Nokia has created its own mobile advertising network.

The Nokia Media Network has signed 70 participating publishers, including Reuters and Hearst. Nokia will sell premium ad space on mobile sites from publishers, as well as on its own sites.

Publishers are drawn to the promise of a one-stop solution for ad-buying on mobile sites, which should yield higher revenue.

Nokia also announced it would add Google's search engine to the options in its Nokia Search applications, available on select handsets. It also has a Facebook partnership in limbo.

Last year Nokia acquired mobile ad metrics and technology firm Enpocket. In January, it purchased interface developer Trolltech.