RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Offers.com - Offers.
Dealspotr - Dealspotr is like Wikipedia for deals.
Coupons.com - Coupons & Coupon Codes, Savings & Deals
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Couponoutlet - Save your each penny on your next online purchase on Beauty, Clothing, Electronics, Food, Furniture, Gifts and Shoes with coupons, promo codes, sales and New offers from your preferred Stores at Couponoutlet, a leading destination for savings.