This is what I've got- share yours if you've got them!
A Full Cup -printables, most notably Target
Coupons Inc.- lists the companies using Bricks coupon generators
Coupons.com - printables
Hot Coupon World
Taylortown Preview- lists all of the coupons that come out in the paper each week, and sells many of them too. If you go to the Master List, use CTRL F to search the whole page
You and Your Family- baby stuff