What for you make a blog?

If you set up a blog then there must be some reason for it. There are a number of people who make their blog but they themselves don't know why have they made it. So the aim behind making a blog must be clear.

The reason behind making a blog be:

Just for fun.
To earn some extra income
To expand your current business

If your aim is clear to you then certainly you will be able to make a blog which will work perfectly.