I got this in AAirmail
We're giving everyone in the Chicagoland area the chance to win the use of an entire plane for a weekend. The "You, Your Friends, and a Plane Sweepstakes" will award one lucky Chicagoan an entire plane. You can take up to 99 friends or just a few for a weekend in Miami, New York, Los Angeles or Las Vegas - all from the airline that gives you more. Look for "special" American Airlines planes landing soon all over Chicagoland! Enter online at www.aa.com/yourplane.