I am the CMU Director of the Pittsburgh Science of Learning Center, which brings you the robust learning wiki you are in!
I am particularly interested in the Instructional Principles pages and also the pages for the new research thrusts that we started in the fall of 2009: Cognitive Factors, Metacognition and Motivation, Social and Communicative Factors in Learning, and Computational Modeling and Data Mining. These replace our previous research clusters.
I've also recently (February, 2010) started a new page for Learning Science and Technology Industries.
Here's my web page (which is often out of date).