A friend recently turned me on to Swagbucks, and I love it!
There are a lot of sites out there that say they're free, and then turn out to be "free, if you sign up for these not so free offers." There are also sites that say how easy it is to earn, but while it is easy, it is way to time consuming.
This is not the case with Swagbucks.
Swagbucks is a search engine that operates using Google and Ask. Use it to search with and you may be rewarded with "swagbucks." You can also find hidden codes, and earn swagbucks from shopping, as well as from referrals. It's easy, fun, and free. I use it regularly as a search engine, and every once in awhile play along with Twitter challenges (just for fun.)
You very quickly earn swagbucks which are redeemable for prizes including: Amazon gift certificates, games, clothing, and even baseball cards, so there is something for everyone. The swagbucks are easy to redeem, and ship promptly.
If you are a regular user of search engines, or you like to shop online, check it out. You might earn something free, and have fun doing it.