Did you know that while waiting for your YouTube video to load, you can play the game Snake? Try going to Google Search and typing "do a barrel roll." What about all those hidden treats in DVDs, where going to a specific menu and hitting the right keys or selecting certain choices in a particular order reveals some nifty hidden content? These are all examples of easter eggs, hidden treats that delight when found...but finding them is half the fun. Easter eggs are usually just that, treats, but can they be used for greater marketing good?