southernsavers.com has grocery stores, drug stores and Target. iheartcvs.com and iheartriteaid.com sometimes have CVS and Rite Aid several weeks ahead. slickdeals.com has information and discussion boards -- not sure about ad scans on an ongoing basis, but I saw some there ahead of time for Black Friday. The best thing about these sites is that they also point out deals, provide coupons links, etc.