i am new guy but i should not put here links but this links is very important to all guys. List of DoFollow Blog Services
What to do with free blog:
You have to create a free Blog and put the Blog name. Blog name should be keyword rich. Keyword rich blog name will help you to get search ranking. Blog title should be same keyword that you have used in Blog name according your business for example Do Follow List. Now write a keyword-rich article, with strategic back links. Then create new posts and post your articles in each post and promote your site.