Doing real productive work is most likely to earn you money, could be as simple as writing web site articles for the non technical brokers like iwriter.com or textbroker.com pay something like $3 for a 500 word article.
If you have some marketable design, programming or writing-translation skills you might find short term work at one of the freelance worker marketplaces like Odesk.com and Elance.com
Elance.com alone reports their (mostly skilled) workers earned $285 Million in 2013
https://www.elance.com/q/online-employme...
Odesk.com has about 420 different qualification tests which can help someone with no track record of completed projects to win bids
https://www.odesk.com/tests
It depends on what work you want to do, or what you are able to do, making money online is not easy or simple as you think, you have to study and learn, first you have to find what you want to do. is it part time job? web marketing? seller on ebay or amazon ? or what, Then start learning there is a lot of work to do before you can make money. good luck
You could try selling from eBay if you have any experience with being able to sell. I'm not so good at it or else I would be doing it. Please take a look at my question.
unless you want to do adult-oriented "artistic performances" then there are no legit websites like that.
odesk