This thought stream serves as my Haskell commentary center and my Haskell story.
Regarding ThoughtStream as a medium - it's lightweight enough so that I'm not tempted to try to add more to it than content (setting up a blog to get it just right can be rather time consuming), but has enough features that I don't feel limited. I know that if I want to drop in some Markdown to organize the content a wee bit better, I can do that.
At a later time, I'll speak to why I'm so interested in Haskell. I'm an enthusiast, an advocate, and a novice!