Amazon MTurks is really good. If you decide to do it, be sure to join the turknation forum site to learn how to do "turking" correctly. You can make anywhere from 5 to well over one hundred dollars a day, once you learn how to do things.
I'm currently only at about $5 a day, but I'm not spending much time on it. I'm still in the learning process, but I do plan to grind it out very soon. My goal is to get to $150 a day. I've seen other people do it, and it's very doable. It is work, though, but it's easy work. And you can decide at any time what types of things you want to do. This helps to break up the monotony of certain tasks.
The money goes directly into your Amazon Payments account (can be used to purchase anything on Amazon). You also have the option to withdraw the money into your bank account. So, it's real money that's being earned, not points or credits.
Don't let the pay rates fool you. Once you get used to things you get much faster at doing things. The money certainly adds up. You could easily build up an extra $500 dollars, between now and Christmas, just casually working for no more than an hour a day.