In most countries multi level marketing is not allowed or seen as fraud by the public. So such systems normally cannot survive longer till the saturation is reached.
Affiliate marketing is also only a half truths. Sure it is good for the vendor, but if you run a website or sell ad impressions then clickrates below 0,1 % and conversionrates of 5.000 clicks bring not really much money.
Better is to sell ad space on a per view basis, and even if you start with 10 cent cpm its often better than what affiliate campaigns or cpc networks offer.
But the more popular your page is, the more companies will be willing to pay for the ad space higher prices, so that you later on receive 0,50-5 $ cpm.
And if you then can handle it to reach every month more than half a million page views then you can realize prices up to 10 $.
If you calculate the real value per click in affiliate campaigns then its often just a fraction from normal cpc or cpm prices.
Further in E-Business it is important to offer something unique if you want to create a business that will work for a couple of years.
Just think of a special business newsletter, e-magazine or information platform for an industry sector for that each client would have to pay 39,95 $ per month.
Then you only would need 100-200 companies worldwide as clients to earn every month between 3.995-7.990 $.
Or think of an accounting service, tax office, appointment service, real estate service, web services, seo service, web service etc.
We have worldwide about 200 million SME´s and you would only need to offer a service to a few hundred. Shouldn´t be impossible.
Think of something that you are specialized in and you like to do with joy. If you can be or become an expert in a field then there will always be a market niche waiting for you.
And always see every business as an investment. If you only invest 200 $ and expect 20.000 $ profit than its like winning a horse race that is 1:100.
The money that you can earn in the web like in the real world will depend on what you invest.