CoinRebates - Shop at your favorite online stores and earn Bitcoin cashback rewards on your purchases.
Paribus - Find out for free if online stores owe you a refund!
Rakuten - Feel the Joy of Cash Back. Find coupons and Cash Back in just 1 click with the Rakuten browser extension
Lolli - Earn bitcoin when you shop online
Kiindly - Discover coupons as you shop
Earny.co - Win prizes on Amazon purchases