Today lets discuss a great GPT sites to win free amazon gift cards. Both of these sites offer instant amazon codes to free members. The first site I want to tell you about is instaGC.com. This is a favorite site of many people who enjoy rewards sites. The earning opportunities are great with many different ways to earn. Some of the ways include watching videos,visiting websites,completing surveys and other advertiser offers. Registration is fast and easy, you only need to earn $1.00 to get your first amazon gift card.