If you are thinking of opening a blog/website then make sure to apply for an advertising company like Google Adsense, That will boost your earning. If you get accepted then your earning will be on cloud nine because 90% on websites on the internet are monetizing their site with Google Adsense.
There are some barriers that you should not cross while having a Blog/Website or you will not get approve. But if you are on a right track with good blog/website then you will be guaranteed make a quite good income (You must read this first: Things you need to remember before applying for Google AdSense )
If you don't get accepted on Google Adsense then don't worry because there are many *top alternatives of Google Adsense like:
