Taking the online reservation system to a new level, TableXchange allows people to buy and sell table reservations to each other in the marketplace, focusing on the most hip and exclusive restaurants in New York and the Hamptons. As a buyer, you simply browse the site, purchase the reservation you want and then call the restaurant to confirm your table (probably the most annoying part of the process). For the seller, you set up an account through the site with Paypal and post, receiving the fee if it is sold prior to three hours before the reservation.