Blogging

I have been so interested in writing blogs, articles, etc. I see that there are so many people doing this for a living or even doing this has a hobby and enjoying it all at the same time. I have always been interested in writing, I am in the process of trying to finish up my memoir but have gotten a little bit of a writers block. I have started posting daily entries on Facebook that I call “You know what pisses me of?” and I would talk about different things that piss me off, situations or issues that everyone can relate to. I was hoping to get some sort of a following with that but as of now its just a few of my Facebook friends and family that read it.
I would really like to get a Blog started that I would be writing in daily, its just I don’t know how to go about starting a blog. I know about blog.com or wordpress.com but I am talking about the actual writing. How is a blog suppose to be written? is there some sort of a format I should use? Is there a way to grab peoples attention?
Also, whats a good way to get my blogs notice? how do I go about building up a following of my blogs or writings. How do I advertise myself I guess you can say, I want to get my writings out there and get it noticed.
I look forward to your help, thanks everybody