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DontPayFull - Verified coupons and discounts for a variety of online retailers.
Dealspotr - Dealspotr is like Wikipedia for deals.
Discount Reactor - Find the best selected coupon codes, hot deals, fresh promotions and great special offers from more than 2634 stores at DiscountReactor
CouponSwift.com - Coupon codes and deals for Domain Names, Web Hosting, VPN, WordPress Themes and software.
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.