Helping others help you

One of the most important, and not only, things that you you need to consider, is that while you are trying to earn your cash, someone else needs to pay it.

My grandfather used to say: In a business, both parties need to earn something, or there will not be a business. What you need to consider is how you are helping others to get to their goals, while you are working on yours.

One very common way is ads clicks. These days, it has become very recognized that most business will pay for clicks (majority goes through google ads, but there are other as well - whom through affiliating into the google ads network, you can get them through google ads system as well).
This way, while others click on ads, you can return a favor to them by clicking on ads for them.

Paypal Affiliates - Not that good

Paypal has introduced an affiliate system several years ago (I think it's inception was sometime at 2004. At the beginning it was USA referral only, but once they became a more global company, every one can become an affiliate.

As a PayPal user, you can collect up to 1,000 USD (in any currency) for each new merchant you refer. The Merchant Referral Bonus program rewards you for bringing new businesses to PayPal, the catch here is that the bonus can be accumulated only within the first 12 months of the new referal registration.
So basically, if you have introduced a good merchant, but, he started doing business on the 367th day of his registration, you get no bonus.

Thank you.