Interestingly, Web Hosting can now help you earn cash and can become an additional source of revenue for you. There are various ways of doing that and you will come to know some if you read on.
The best way of earning is Reseller hosting. Just buy a complete web hosting package and then divide your acquired server and bandwidth among others for payment on a monthly basis. Just make sure that you actually gain more than you had to pay to buy the package. You basically buy a shared server and divide the server among other clients for them to host their own pages on your server and you get paid for that. You need to keep in mind that a lot of networking will be required from your side to gain customers for yourself.
Other ways could be creating a web hosting with something specific to your interest or needs and then placing advertisements on your pages. Even when you are browsing through any sites, you are sure to come across some banner advertisements on many pages. It is common nowadays. You can do it on your pages too and earn from that. Companies approach famous and already well known sites themselves to advertise themselves on those sites, but you can still get banners anyway even if you are new into this. The best way is to join as affiliate of other sites through a network, or even directly if you want. These advertisements are kind of like TV ads but like banners or text-like banners and you get paid each and every time a visitor clicks on it. This is sure to get you good results in the form of constant revenue.