What is it?
Clickworker is a website hiring freelancers to work on writing, translating, researching, and data processing. It's free to sign up.
How does it work?
Once you have signed up and logged in you are taken to your 'home page'. This page displays your available jobs and assessments. You take online assessments in language and writing skills, translation skills or internet research skills to open up different job opportunities.
As described by their website:
The tasks available may vary from clickworker to clickworker based on qualification assessments, previous work assessments, education, language abilities, and interests. Depending on your total profile and qualifications you may be offered some projects or may excluded from others. Payment is made for each accepted and completed task. The amount is fixed and published ahead of time.