Coupon Mountain -- Amazing blog section. Find a deal. Submit a deal. Request a deal.
Coupons.com -- Print grocery coupons to use at your local grocery store.
Cool Savings.com -- Savings made simple. Printable and online coupons. Also compare prices.
CouponBlog.net -- Discounts & promotional codes for online stores.
CouponCabin.com -- Can search by most used coupons and coupon codes.
CurrentCodes.com -- Hundreds of well-known online stores have a place within their shopping cart for a "coupon code" that gives a percent or dollar amount off your purchase. Here are the current codes.
DealLocker.com -- Search by coupon category or most popular store.
Naughty Codes.com -- They find and list all of the coupon codes and promotional codes that are often sent to select customers.
printable-coupons.blogspot.com -- Special section called Mommy Saves Big.
RetailMeNot.com -- Online coupon codes for every retail product you can think of. Those are codes to be used when checking out online.
Wow-Coupons.com -- Not just retail and grocery, but also restaurant and travel.