I used to write blogposts with a clear headline, stuff like "how to X" or "why X is wrong", etc. My main blogging was social commentary, about local political affairs and news. But I got tired of that and now do a "start writing in pure stream of consciousness" thing. So you could say it's creative writing. But I think I have a lot of source material in there which can be further edited and refined into essays or blogposts. My goal is just to hit 1000 words per session. I typically do this on my commutes to and from work- I write on my smartphone into evernote, then publish on wordpress. I number the posts when publishing. The goal is to hit 1000 such posts.