Instagc.com is a free site to join and earn points towards gift cards. Even when you become a friend of theirs on facebook you are able to get free boost codes to add free points to your account. I love this site to get a few free gift cards like to amazon, or much more!
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check it out here: http://www.instagc.com/
I've been a member for a while and love it. I get free gift cards for doing a few surveys, watching videos, and much more. Its a great and easy site to earn cards too all your favorite sites.
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