Sell Out Your Friends for Miles

Well, no, not really.

But United Airlines does want you to open up your address book and sing the praises of the Mileage Plus program,

Refer four of your friends to the United Airlines’ program at mpfriends.com and you’ll snag up to 5,000 miles if they join up with Mileage Plus (250 miles) and take a ‘qualifying round trip flight’ (1,000 miles).

Your friends will get a sweet little 3,000 mile incentive to start loading up the frequent flyer bank.