How can I contribute to society online? (Details inside)

Paypal?

@Dan_Lyons I don’t understand?

Paypal allows you to make donations to charitable organizations online from the comfort of your e z chair.

Write short fiction or poetry.

If you are proficient in any foreign languages, maybe you could start a web based translation service?

I can’t help wondering though, why don’t you want to get out amongst the community?

Write opinionated blogs on politics and religion.
Otherwise, webcam sluttery.

I don’t really get how writing on a very small community like fluther is contributing to society, can you clarify what you mean?

In order to make a contribution, you must provide some unique expertise or useful information in your answers.

You could post on that other Q&A site, YahooAnswers.