one of the benefit way to earn money online is Affiliate Programs! They have some advantages, for example, you shouldn't creat your service/product, you may use existing strategy and developer can help you on fist steps to run business.
I must say the question is wrong. Apology for that. But your question should be what are the strategies to make good money online? The answers are so many. One i will illustrate here. Go to Billboards dot com - a place where all the forums are listed. Choose the one you are interested in - start posting some posts. Go to rapbank dot com - a place where you can get some products to promote - you get 25% - 100% commission instantly paid to your paypal - YES INSTANTLY. Take the affiliate link of any product you are interested in from rapbank - proceed to the forum - put it into the signature The only ongoing work you'll have to do is keep posting relevantly.