CouponFollow Cently - Coupons at Checkout is a browser plugin for Chrome, Firefox, Internet Explorer, and Safari that...
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Similar - Save your cash, we search through 100 million+ products in real time to give you the information you need to buy with confidence.
CashbackOS - Wordpress Cashback Script - The Cashback Coupon Business Solution for a Startup
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
CheckMate - CheckMate powers online and mobile check-in for hotels and their guests.