Being part of Swagbucks has been very rewarding experience for me! (over $2,500 to Amazon.com) It has helped pay for college supplies and outdoor gear while on a tight college budget. It's been well worth the small amount of time i've put into it using Swagbucks to be rewarded for free!
I actually started off using a Search and Win site (powered by Swagbucks) for my band near the end of 2007. I used it on and off for a while hoping to get enough points to get the macbook etched with the cover art of their newest album.
About mid 2008 I decided to use Swagbucks instead of the other site because the prizes were cheaper. Then I found out how much i had been missing it. Swagbucks had a very active community and encouraged users to search and participate in the community (that didn't happen on the other site). November rolled around and Swagbucks had a contest to see who could create the best widget promoting Swagbucks. Since I had recently started promoting Swagbucks, I decided to use my newly acquired flash animation skills and give it a shot. Surprisingly, i ended up winning! (which made me happy).
Since then I've made two other widgets, and made a website about Swagbucks. I enjoy promoting and helping other people learn about Swagbucks. It's helped me save money, and I figure other people like saving money as well. My website is a way to practice my flash/web development skills as well. College has taken up a lot of my free time over the past three years, so I haven't been as active with Swagbucks as I would like.
Overall I've earned around 289,000 Swag Bucks over the past few years, which i've traded out for over $2,500 in free Amazon gift cards (as well as a few other prizes). Swagbucks is a great way to earn free prizes just for fun, or to help subsidize you daily life. For me, it's been a way to have a little bit of play money, while going to and paying for College. You should sign up, and start wining now, as well!