How cool would it be to get paid for stuff you already do, like shopping on Amazon? Or browsing the web? Check out these sites that let you do just that.

• ShopTracker will give you $3 per month just for linking your Amazon account. This site collects data to help companies understand what people are buying online.
• InboxDollars pays you to watch movie previews, celebrity videos, news and other types of video content. They'll pay you via Paypal or Amazon gift cards.
• Paribus searches your email for companies that owe you money. It searches through purchase receipts from retailers like Amazon and Target and issues you a refund anytime it notices a price drop.
• MobileXpression has tons of prizes you can enter to win after being a member for one week.

Balance: $189