So along the lines of a "Ask HN: What's your startup", I'm sure a lot of us have blogs that we write on that don't get a lot of exposure. So link your blog here with a short description about your topics.
I'll go first:
http://devcomsystems.com.au/blog
Main topic at the moment is documenting the journey of building a web app for the web app challenge. Creating a $5k/mo web app in 6 months.
http://simonsarris.com/
I've gotten an enormous amount of thank you's for that post, mostly from when I wrote similar sentiment on reddit to encourage people, but its not really in line with the rest of the blog to date.
Unfortunately 100% of my blogging steam since last July has been forced into a book that's currently in the works (a tome on HTML5, nothing too exciting!). I'll be extremely happy when that's finished and I can return to blogging. I've gained a lot of intimate knowledge of Canvas in recent times, so there are an enormous amount of Canvas-related topics I want to cover. And the book, to say the least, is about ~200 pages of my canvas expertise and ~300 pages of "other" HTML5 :)
I'd really like to get more into storytelling too, alas, my time is so thin.