how to earn money from website or blog

You can earn money from  website or blog using advertise.
You can use https://www.google.com/adsense to get Ads for your blog.

You can sell products and services from your website.
Example http://www.flipkart.com online mega store

You can make members for your website  to use service

 • Surveys & Polls
You can place surveys and polls from certain companies on your website that will pay you for the privilege. You can sign up to these sites and choose a particular survey/poll that will fit in with the content on your website. Visitors of your site can participate in voting, whilst you get paid for displaying it. Most of these polls operate on a Cost per Mile basis.

Websites to Earn Money By Uploading Files 

Create an account from below of these sites, and do not worry, these types of sites usually professionals and secure. Because maintaining files is very important for you and for them, and chances ripped almost anyone.

Upload your files and get the link to provide you, now all you have to do is promote the link on some very popular places online such as Facebook, Twitter, TechCrunch, Digital Color and so on. As people look for what they need and then you will have the link, and when a certain amount of people download your file, it may eBook or your MP3 song, or any of your movies, you can earn money from the site where you uploaded the file.