Viral Marketing is nothing new. It's a very creative way to advertise a film, television show, book, whatever. I can recall getting wrapped up in the tangled puzzle that was the Cloverfield viral marketing leading up to it's mysterious premiere in theaters. Not much was known about the film, aside from it's release date shown in teasers before screenings of Transformers. When you would search for the release date, the game would begin and it was kind of fun to get involved in a way that made you feel like you were part of the story. I always thought it would've been a cool way to market Man of Steel, by having the videos that Zod transmitted to Earth when they first arrived to serve as mysterious promos for the upcoming film. Have a little fun with his invasion of Earth.