The internet is a pretty massive place and it has a lot of money earning opportunities. You can make money trading but you can also lose money more easily than make it, if you have the money, risk appetite and patience to learn it it can be lucrative though. The more risk free method to make money online even if you have no capital to begin with is to sell services though, programming, drawing, proofreading, writing, narrating... Just find something that you're good at and offer it at a price.