Well, if you want to earn then having a a blog and promoting in a right way can help you to generate good sum of money for yourself.
If you want to become support for your family then you can try the following steps:
- Start a blog and write something useful related to any topic.
- Promote it through social media sites.
- Setup a Google analytics account and measure the traffic of it.
- When good amount of visitors start visiting your website then approve your blog to Google Adwords and start displaying your ads on your blog.
- Each click on the ads will help you to earn money for yourself.
If done in a right manner then it mostly takes 6 months and money will start flowing to your account.