Shutterfly Referral Program
Shutterfly specializes in personalized products and services. They bring photos to life in photo books, gifts, home décor, and cards and stationery. They have also expanded to Tinypics which is a sister brand that caters to cards, invitations, and announcements.
Their program offers a few different reward options, a free photo book, 40% off coupon for their sister site, Tinypics, or 10 free cards. This is unique in that most programs offer a specific reward with no variation. So having the option to choose your reward is nice. They also don’t over ask you to refer, instead, they make the program easy to find, and let people choose to do it on their own.