Cannot speak for this guy's rep, but restaurant.com gift cards are incredibly cheap (b/c they are difficult to use)
Got one myself "for free" last thanksgiving. Other people have estimated the worth at <=$2.
Research the gift card carefully.
They're not difficult to use, at least not in Southern California. I wish I bought a lot more when they were on sale. I got a few Indian, Korean and Sushi joints that are happy to take them.
It's not a good deal if you're looking for a cheap meal, but if you're taking a group out to celebrate and were going to spend $50-$100 anyways it's an pretty good buy.