Playing games online: if you like playing games, why not turn the hobby into a moneymaking activity? There are tons of websites out there that reward their loyal fan base with points when the complete a game or play for a certain amount of time. These points can then be exchanged for real money. Sites are able to do this by sharing the profit they make from ads as an incentive for users to visit the site.
This is where it can all go downhill quickly. In the pressure to make as many pennies out of a nickel, a lot of research corporations will not just sell your answers but the data associated with it. Details that you provide when taking paid surveys such as your name, address, age range can all be attached together quickly to fulfill a lot of larger companies' requests for information (RFI).
Amazon gift cards and PayPal are obviously popular choices, so naturally like most sites MySurvey had those. These guys did not stop there though. At the time of writing (I double checked) they also offer various sweepstakes, gift cards to restaurants, you can donate to charities like UNICEF through them, they have iTune gift cards, their very own merchandising products and also Starbucks, Walmart and Tango gift cards among many more options!