Steps to Make a Living by Blogging

1. Teach other people what you know.
2. Be like a consultant, best-selling author, public speaker and a professor. 
3. Be an expert, a teacher, a mentor or an entrepreneur. 
4. Your blog is only the LAUNCH PAD for all the above. 
5. Have your own books, courses or software.  THIS is how to make money.
6. Your blog is only a FREEBIE to attract clients and customers.
7. Build a list with an irresistible  offer. 
8. Don't sell ad space.  Use ad space to sell your own products and affiliate products. 
9. Publish a continuous stream of content. Read books and articles about your field. Create new products to sell. Answer questions from readers.
10. Do webinars.
11. Forget Facebook, twitter, Google plus and such.
12. Build relationships with influential bloggers. Spend as much time reaching out as writing content.
13. Forget surveys.
14. Start with services, the expand into products. Solve real life problems.
15. Teach others what you learned.

Source:

• http://boostblogtraffic.com/make-money-blogging/

An interview with a successful blogger making a living: