This is brilliant. Just like many of the video game makers ahve been doing for a while.
This patent, which was originally filed on July 7, 2008, describes a new system for promoting ads in online mapping applications. In this patent, Google describes // <![CDATA[// how it plans to identify buildings, posters, signs and billboards in these images and give advertisers the ability to replace these images with more up-to-date ads. In addition, Google also seems to plan an advertising auction for unclaimed properties.