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Coupofy - Coupofy is USAs number 1 trustworthy deals and coupons website.
Price Snoop - When viewing a product on Amazon, Price Snoop will show you just how much it costs on the other...
TrackIf - Alerts you if the price of your favorite products drop
Penny Parrot - Get price drop alerts for products on Amazon as well as historical pricing to find the best deals.
Lootr.com - Lootr - Your favorite amazon price tracker. Saving you from paying full price.