Swagbucks is a search engine, like Google or Yahoo, that rewards the searcher with points that are redeemable for various prizes (including Amazon giftcards!). There is no monetary cost involved (however, I'm pretty sure they track what people are searching for advertising purposes, so if it's something you'd rather not have tracked, it might be best to use another search engine...though I'd not be surprised if google and yahoo sell information collected as well...) This has been an inexpensive way for me to earn a little extra spending $ without doing any extra work since we use the internet daily anyway!
Right now, Swagbucks is offering a 70 point bonus for new sign-ups when you use the promo code HOLIDAYSWAG (good through December 31, 2011) and after sign up you should receive an additional 30 points--so that's a 100 point bonus (nearly 1/4 of the way to an Amazon giftcard already!). If you don't already have an account, you can register HERE and start earning swagbucks for prizes. One of the easiest ways to use this search engine is to download the toolbar so it's always showing on your screen and convenient to use when you wish to serf the web.
Disclaimer: I will receive swagbuck points for each new account through my link. However, my review of Swagbucks has not been tainted by this fact, it is my honest review.