Recently, two blogs that I follow posted lists of other blogs to follow. Between them, they listed 125 possible new places to learn. As a result, I have discovered a number of new, regular watering holes for me. I hope you will find something for your learning thirst as well.
Jonathan E. Martin’s “A Few of my Favorite Blogs”
Alexis’ “Top 100 School Administrator Blogs”
[Alexis is working on Top 100 Teacher Blogs next.]
it's about learning 
Jamie Feild Baker’s more complete post about the same two lists: http://www.jamiereverb.com/2011/01/resolving-for-2011.html