Travel Writer Nomadic Matt is giving away 350,000 American Airline miles on Facebook.  There will be three lucky winners: one grand prize winner will receive one “OneWorld Explorer” ticket for a trip round the world; one winner will receive an opportunity to travel to their favorite destination on a round trip business class ticket; one winner will get two round trip economy class tickets to travel to one of their favorite destinations in the world.  See restrictions and enter by August 1, 2011.