UPDATE: ALIVE AGAIN! (Thanks @freebies4mom)
UPDATE: Sorry, this offer is temporarily dead!
Diet Coke has release a hot printable coupon for $1 off any 14 oz., 16 oz. or 20 oz. Diet Coke product when you allow them to access your profile and ‘Give a Friend Boost’ to send this coupon to up to 5 friends!
Make sure you tell your friends about this post so they could send you a coupon too! The 20 oz. bottle usually run for around $1.
After you sign up, don’t forget you are able to remove anyone from having access to your profile by reading How To Remove Company Applications from Accessing your Profile on Facebook?.
(Thanks @Kelly)