Blogging has been revealed as a way of increasing traffic, making sales, getting more followers, placing the ad units, and so on. However, those are not the right reasons to blog.
The primary reason you should be blogging is because you like to write and you like what you write about. In the beginning, any new blog will struggle to a certain degree to get the traffic, sales, followers, and advertising money. The people who blog just for the traffic, sales, followers, and advertising money will quickly be disappointed when their blogs don’t do well in the beginning.
These people don’t stick with blogging because they quickly realize it will take a long time before their blog becomes the next big thing. If you are writing blog post after blog post because you love what you do, then the traffic, sales, followers, and advertising money (if you really want to put ads on your blog) will come a byproducts.
Don’t blog for the fame. After you blog long enough, you do get the fame, but don’t just write blog posts for the fame. Love what you do because you’re going to be doing what you do for a long time.