I'm an avid reader of two more edublogs by Iowa teachers.
Russ Goerend, a K-5 TAG teacher, blogs at TAGmirror primarily about technology integration like I do, but what he excels at is analyzing and advocating giftedness in students. For some examples, he has posts entitled "Are You Being Deceived? TAG Myths" and "Will I get in trouble if my cursive is sloppy? Acceleration"
An excellent post of his is how he is using Google Docs in the classroom. This is a must read for anyone looking for a step-by-step analysis of how to use Google Docs in the classroom.
Matt Townsley is a math instructor at Solon High School. His blog MeTA Musings looks at math education, technology, and assessment. He is not only a champion of standards-based grading in a constructivst environment, but he puts an important focus on assessment throughout his posts.
However, on a sad note, both went to Wartburg. Any Norse edubloggers out there, please chime in. I'm being outnumbered.