Selling games works by Dawdle taking a 12% commission, which is lower than many sites, and all proceeds from the sales are received by direct deposit. Meaning, the cash gets dropped directly into the seller's checking account (no PayPal). Dawdle says sellers will receive more value for their used items than at the local gaming pawn shop.
As for buying used games, Dawdle uses what it calls a "Standing Offers" system. Essentially, a buyer puts a bid out there for what they want and are willing to pay, if the system makes a match then the charge goes through (if you've used Priceline.com, it's the same principle). Dawdle also has some business partnerships that make it stand out from the crowd, but it'll take time to see if gamers begin using the service as an alternative to the almighty GameStop.
