Free $5 Amazon Gift Card for everyone who signs up for MobileXpressions which is a market research firm. You do have to have a smartphone for this one, and you do have to install their app (they text you a link after you sign up). After one week you get at least a $5 Amazon Gift Card but you can also get things like iPads, TVs and more! Once you sign up, SHARE this post with friends so they can sign up too!
You can always sign up for Harris Poll to earn Amazon Cards