I have been using Hitbliss, which is a downloadable program in which you earn money by watching advertisements and spend it on Pandora, rent movies, or buy episodes of popular TV series.
HitBliss allows you to watch minute long ads, and 30 second ads, etc, and you earn a certain amount per ad. It really does not take much of your time, and it looks very well. But... you have to be engaged. There is a timer which you must click before it tuns out to show that you are still engaged and present. The more you click it, the higher trust level you get, and the less you have to click those annoying buttons. Oh, you also cannot go to a different screen, or mute your computer. But you gain your trust level, which is kinda like playing a videogame. You get bonuses for consecutive clicking, as well as clicking it early. It also gets harder to level up as you earn levels, because the message pops up more and more rarely.
You can only use the money to rent movies for 24 hours, get a 1 month Pandora subscription, or buy TV episodes. You cannot withdraw the money, which sucks, but I can see the point in doing that. They want to limit abuse of the system where people watch ads just to earn money and may not even be engaged, or make multiple accounts to earn a ton of money without actually truly watching the ads. They do this by limiting the ways you can use the money. That way, it differentiates between HitBliss and sites like Jingit, which is very similar and does allow you to earn money and spend it like a Visa debit card.
HitBliss allows you to watch the same ads numerous times a day until your limit is full, which is 6 bars. Or 24 ads in total. Which will probably net you about 6 dollars a day... which is your limit. You can only earn 6 dollars maximum until you spend your money. If you love movies, just a little time watching ads a day can allow you to watch them for free. Awesome? Hell yeah. Of course, I rarely watch movies or Tv... Maybe now I can finally catch up with Dr Who.
There are still some bugs to work out, but it's free. So check it out.