Philipp Lenssen points to Mazda EarthSearch sweepstakes game. You basically download a KML file that runs on Google Earth and follow the steps from there. The game shows you hints of historic landmarks, you use your search skills to locate the landmarks on Google Earth. So far they have two steps, where you locate two different landmarks. I located both and now I await an email for next week's continuation to the game.
The Original Search Marketing Event is Back!
SES Denver (Oct 16) offers an intense day of learning all the critical aspects of search engine optimization (SEO) and paid search advertising (PPC). The mission of SES remains the same as it did from the start - to help you master being found on search engines. Early Bird rates available through Sept 12. Register today!