This is a blog from a friend of mine, but he hasn't updated it in a while: http://bostonsession.blogspot.com/ and even better than just being a blog, it has recordings of tunes & songs!
I started an art blog in August that isn't dedicated to trad but it does become subject matter for photography and graphic design from time to time since it is a big interest in my life (my avatar, for example).
I have just started a blog that will deal with pipes, whistles, old recordings, Clare, photography and whatever else comes along. There will videos but we'll play it by ear and see where it goes.