Swagbucks is a website that you can use to earn free gift cards, such as target.com, amazon.com, etc. as well as other prizes. You use the toolbar to search just like you would on google or yahoo. Every few searches, swagbucks awards you with swagbucks which can be redeemed for prizes. I love this site. I don't do much more than I would normally do when online, but have already earned 3 $5 amazon.com gift cards in about 2 months. Awesome, right.
Sign up using this link (I will get rewarded for referring you- then you can refer your friends and be rewarded as well):
If you would like more information on how exactly swagbucks works check out this post by Meagan on Frugal Fun and Fortune (one of my favorite blogs):