Coca Cola Coupon

I can never find these so I'm really happy to tell you that there is a coke coupon on Facebook.  Here  The coupon states "Save $.99 toward a 14 oz, 16 oz, or 20 oz bottle of Coca Cola."  You send the coupon to a friend on facebook and then they need to send a message back to you with a coupon.  You can only print them once per computer.