Blogs I read:
Hacking Chinese: Great site. Their tagline is : Everything you need to know about studying Chinese, but no one will tell you.
Confused Laowai: Has interesting posts, also some interesting projects. “Niel, otherwise known as Confused Laowai. I blog about my exciting, yet often confusing adventure learning Chinese.”
Laowai Chinese: “Tips and Strategies for Learning to Speak Mandarin Chinese”
For a more complete list you can also check out all the people I follow on Twitter.