Ruby Tuesday is running a promo for National Cheeseburger Day (9/18). They are giving away 100K free cheeseburgers.

To receive your free coupon:
1. Click on the their promo link:
2. Login w/ either FB or Twitter. You'll have to fill out your name, city/state/zip, birthday and email (you can uncheck the email list box). Hit Submit.
3. Coupon will be delivered to your email. Took about 1-2 hours for me, but it worked.
4. Free burger coupon is valid from 9/18 - 10/13.