Food Critics is a cool site because you are not just simply commenting or reviewing on restaurants but it has social network and community features in it where you can build a profile and even a reputation. You can move up the ladder of as a food critic and build a following.
What we like about Food Critics is that they combined social networking and social media features and concepts to allow users to become a food critic, maybe you are not food critic on Iron Chef but it's fun to be able to build a following. What was the best restaurant you've ever eaten at? (we will review and post them online if there's interest)