World Wide Chocolate has free UPS Ground shipping available on all orders with no minimum purchase requirement. They have a big selection and even though their prices are typically a little higher than the least expensive online chocolate retailers, free shipping is a great deal for small orders.
In particular, this is an excellent opportunity to pick up some chocolate bars from Amedei, Madécasse, and Potomac. World Wide Chocolate has competitive prices for these makers even without a sale, so free shipping makes them a bargain. Amano would usually be on that list as well, but they are currently sold out.
Use coupon code FREESHIPPING during checkout. This offer is valid through Monday, February 10th. It has been roughly a month since they last ran this free shipping offer.