Chris Smith offers tips for optimizing the performance of your rooftop ads that show up on Google maps. "Make sure your roof supplies large enough canvass area for your ad to be visible from satellites. If your building’s roof is insufficiently large, you could spread your image out onto the sidewalks and parking lot for additional space."
Speaking of rooftop ads, Clickable Culture talks about Second Life ads built to be seen when players explore the world's map.
