One of my favorite blogs to read is The Online Photographer. Mike Johnston used to be the editor for what is still my favorite photo magazine, Photo Techniques.

I don't agree with everything he says, but he writes thoughtfully and well, and has some of the best commenters around. It isn't a rehash of links and press releases, each post is a mini magazine article.

Now if someone would just start something similar here for retouching, and another for photo restoration, and another for compositing, and another for HDR, and another for imaging software, etc. (that's not a hint, it's blatant begging).