Lufthansa Worldwide Egg
Lufthansa have developed a cool Google Flash API hide the Easter egg game which should drive some traffic to their website. The object of the game is to design your own Easter egg and then to hide it anywhere in the world, using Google Maps.
When you have hidden your egg you then get to send an e-mail to your friends containing a clue to the egg's location. If your friends find your egg then you have a chance to win a trip together to a European destination.
Peter Rabbit Easter Egg Hunt - Golakes, the official website of Cumbria Tourism in the UK, has come up with an awesome Google Maps based egg hunt that should encourage a lot of visitors to the area this Easter.