On the internet, there are many ways to get money. There is capital that is like buying a domain, hosting, ebooks, software, registration fees etc.. And some are able to run without the use of capital as a business PPC, PTC, affiliates and others.
For PTC business, you can register as a free member. And no need to upgrade to a paid member. What can earn big money if not to upgrade? Yes can, as long as you can get referall (invite others into this PTC business) that many. But first, do you know what the PTC business? If you do not know, the core of the PTC business you just click on the ads and you get paid.
Business PPC, this business is a business that is run by most online businesses. Yes because this business can run itself though left alone. To the core of the business is that if there are PPC clicks on the ads that site owners will be paid.
affiliate business to the point you refer a good example to others through the site. Then there are people who buy goods through the references you provide. Then on the sale of the goods you will get a commission.
That means looking for additional money without capital via the Internet. May be useful !!!