What you can be paid depends on your talent, if you have no special skill you will mainly be offered scams or very low paying busy work.
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 job bids
https://www.odesk.com/tests
There are countless work at home scams on the internet. This ABC TV expose from a few years ago shows how elaborate some of these scams are.
http://abcnews.go.com/Video/playerIndex?...
http://www.ipas2build.com This will require little investment and start earning you commissions right away. Of course I wouldn't recommend using this as a full time way of making income but a little extra to put in your pocket each month!
If there were any we would all be doing them instead of earning lots of points anwering this questions dozens of times every day.
Http://www.cheddarbread.com
fraud.com and sendmeallyourmoney.com
