There are two types of internet-jobs: the first type develops you, the second doesn’t.
For example, for starting writing job you need to read a lot and to write. When you read, you learn new words, grammar structures. So, on the way to this job you develop yourself. And when you will finally become a real writer (as measure point can be, when you get paid for your writing job), you will still develop your skills.
Example # 2: By doing a translations you also keep your developing.
Doing these types of jobs also can increase your income.
Not developing jobs
Example # 1: Jobs like typist, some “click”-jobs, etc. don’t give you nothing except of little money. And what is important, your income won’t become higher.
So, I recommend to choose that type of job, which will have a potential for you. Be smart!