couponlooker is a great search product that aggregates coupon savings from all the top coupon sites. You will find no bells or whistles on the site just simple, effective coupon search.
When you search for “pizza” coupons you’re returned results from all the coupon sites plus merchants. The side panel provides you with popular searches related to your search query and it also provides you with a list of merchants offering coupons.
The side panel also tells you the minimum and maximum percentage off for the coupon results, which is really handy.
couponlooker is a standalone site but is a product of the Judy’s Book team.