What's the mean to continue to write in blog ?

I think Blog as a tool. At first, I began to write my idea and got feedback from what I had written. But it didn't continued. Because, I could write the idea on my notebook. So, in writing on blog, I need not to take the needless work.

What should I write in blog ? At present, I'll write just a random thought. That's the last thing I'm concerned about. I'll write it whenever I want to do what I'll want to do !