Restaurant.com has a new 80% off code MENU available. The $25 gift certificates are normally $10, but are $2 with the code.
They also sell $10 certificates for select restaurants for $3, making them 60 cents each with the code. Thanks NCSUFire
Note: Be sure to check restrictions for the certificates before you purchase, as they vary among different venues.
I just got TWO $25 gift cards to Champs Sports Bar, and it only cost me $4. There's a tiny catch (each restaurant is different) though. For Champs, the gift cards require a minimum $35 purchase. But...how hard is that to do with 2 or 3 people, ya know...especially since the gift cards are (freaking) 2 bucks!