1Start with an Online Blog:
The very first answer to how to make money is obviously the way which I had started with and that is, setting up an Online Blog. But, choose this way of online learning if and only if you like writing. If you love writing, you have a passion of expressing your views and you know how to share your feelings in writing only then go for this option. You can start blogging by creating a free blog on BlogSpot. After that you can start making money by creating an Adsense account.
But creating a blog is not enough. You need to have a decent traffic on your blog. Traffic ultimately converts into income. The more is the traffic, the more are the chances of generating higher income. You can read about earning through Adsense here.