I probably heard of rooftop ads at some point in the past, but thanks to services like Google Earth and MSN Virtual Earth, advertising that is visible from above is becoming incredibly popular. A few days ago Bryce posted this picture of a Target ad, and today Jeff Clavier discovered an eBay auction for a rooftop ad:
Well, an auction for a one year ad placement is now on eBay here. It was listed 3 days ago by a company called Roofshout – whose domain has been registered 4 days ago.
Details of the actual placement, location, etc. are more than fuzzy – to say the least. We’ll see where that one ends up: current price, $105 – 6 days to go.
Scam or market test ?
I say market test! With more and more people spending hours virtually flying around the world, this kind of thing could be come quite popular.
Read: Jeff Clavier
MasterMaq's Blog 
I think it’s an interesting concept – especially as a branding piece. However, I question its effectiveness and how to measure the audience that views the piece and thier recall.
Yeah, I was thinking about that too, how do you measure the audience? One way would be to turn it into an event like geocaching.
If you’re not familiar with it, geocaching is basically an activity in which you might hide something somewhere, and then you’ll post the GPS coordinates of that location online so that I can punch it into a device and try to find it.
Same thing could happen with these "virtual earth" pictures…clues posted online about where an advertisement is – first one to find it wins! It’s not perfect, but you’d have some idea of the audience that way.