This appears to be a targeted offer I received from AA today, but it won’t hurt to try signing up yourself if you already have a AAdvantage account.
As one of our most valued American Airlines AAdvantage® members, we are sending you this reminder of an exclusive offer to earn up to 10,000 AAdvantage bonus miles.
Simply refer your friends, family and colleagues to join the AAdvantage program through the link below. You will earn 1,000 AAdvantage bonus miles for every person who joins and participates* in the program before August 31, 2010 — up to 10,000 AAdvantage bonus miles!
Plus, each of your friends who participates will earn 1,000 AAdvantage bonus miles too.
If you don’t have an AA account and are interested in the 1,000 bonus miles, send me an e-mail (firstname.lastname@example.org) and I’ll be happy to refer you!
My friends are worth much more than 10K miles!