How does one make money on creations for the internet?

When copies are super abundant, they become worthless.
When copies are super abundant, stuff which can't be copied becomes scarce and valuable.

When copies are free, you need to sell things which can not be copied.

... In a real sense, these are eight things that are better than free. Eight uncopyable values. I call them "generatives." A generative value is a quality or attribute that must be generated, grown, cultivated, nurtured.