Currentcodes.com lists promotional and coupon codes for hundreds of well-known retailers, potentially saving you money each time you shop online. From the home page:
Currentcodes.com has a full-time staff of trained individuals whose only job is to find new coupon codes and discount codes and verify the accuracy of the existing database. We don't flood you with ads and we don't throw deals in your face. No hype, just current codes.
[Via Get Rich Slowly]