TheKrazyCouponLady.com - has coupon database and also has some neat tutorial videos on how to coupon at CVS, Wags, Rite-Aid, etc.
If you "Like" them on Facebook, you will get great deal updates all day!
CouponMom.com
CouponingtoDisney.com - Love her site. Her idea behind couponing is that you take what you save by couponing and put it aside for your next Disney Trip! Love it!
PassionForSavings.com
These are basically the 4 main Free sites I use. They all have Facebook pages that you should 'Like" for deal updates.
I used to belong to TheGroceryGame.com, which I think is a good site, but requires a subscription fee. DH and I decided that we could get the same info for free from the above listed sites.