Free AA Miles (100 minimum) With Facebook Mystery Miles Promo
American Airlines loves social media - so much so, that they are giving away free miles. Simply "like" their Facebook page and enter your AAdvantage number in their Mystery Miles promotion and see how many miles you get. Most people are getting 100-300 miles, but you could get up to 100,000. I would LOVE for a TPG reader to score that many, so feel free to comment below on your free miles amount. FYI, I don't think this will work on smart phones, so you may have to do it when logged in at your computer.