Gilt Taste, a site dedicated to food. A perfect companion would be wine. And they launched it this morning: www.gilttaste.com/market/wine. Now you can buy wines, sold by wine.com, by the bottle(s), or by case with prices ranging from $12 to $500. Some of the producers include Chercher Trouver Wines, Jones Family Vineyards, and Château Saint-Pierre.
You don't need to register on Gilt Taste to view the inventory. However, if you plan to make a purchase, an account is required. You'll need an invite for that. Don't have one, follow this invitation link.
I wonder how this will affect the site, Lot18.