I just signes with two sites, Slicethepie and Clickworker. Slicethepie allows us to basically become online reviewers and we are given various music tracks by contemporary astistes to listen to and to review. I've made about 5 dollars from it and apparently it was easier than I thought. Just make sure to use good English, avoid profanity and to write reviews that are detailed and well-written.
Clickworker was a little more different, you had to take various assignments and tests (language skills, writing and analytical skills) to determine if you are eligible to work as a translator, copywriter, technical writer, analyst etc. for various mini jobs. The pay tends to be slightly better (or even much better if you pass all the tests) than Amazon Mechanical Turk.
What do you guys think? Is making money like this worthwhile?