Learning to use a blog

We are now the proud owners of a tiny Acer net book and are trying to learn to use it and to learn how this blog thing works. So now that I'm on line (using my neighbors wi-fi) I need to learn to post to the blog. Then of course I need to find out how other people can read it while we are away. So that is what I am trying to do now. I need to find out about putting in photos too.