PTC and PTR??? help!! I wanna know this..

I do many things online to make money. One of the things that I do is taking online surveys for cash. My two favorite are surveyspot and opinionoutpost. I have made over four hundred dollars from surveyspot and about ninety from opinionoutpost in a year and a half. Another way to make money online is to write online articles for cash with associatedcontent. They will pay you three dollars to twenty dollars per article you write. Usually the average is around three to four dollars per article. All of the sites above are free, if you dont live in the united states you may need to make sure you can be a member at these sites because im not sure if they take international members since i live in the united states.