What is the Major Benefits of Blogging?

I'm also curious about bulk blog submission. I only experienced bulk video submission(submitting your video file to a multiple sites) and I used tubemogul to do this. So I wanna know how does bulk blog submission work and is there any tool or services that offer this.

Today we will be telling the benefits of guest blogging that will take your business and blog to the next level.
-Brings in More Visitors and Quality Traffic
-Improves Page Rank by having backlinks
-You Become Popular and Influential
-Improves Your Writing Skills
-Builds A Subscriber Base

First of all it might be for personal relief since some people just like to blog not for money purpose. Then it is also a good source of quality backlinks and traffic.

you can get different type of very useful traffic for your web site. it is easy to start blogging. easy handle

I think anyone of us is doing this for money.