Dave Munger has a music cognition post up at Cognitive Daily. You can read my take on it in the comments, I won't bother repeating myself here.
And a fellow Lawrence alum has started an online journal on music cognition called Sound and Mind. This is an offshoot of Am Steg, an online music theory site run by Kris Shaffer and Devin Burke. When Am Steg started, the servers were overwhelmed by all the theorists trying to access an interview with Ian Quinn. Hopefully things are running more smoothly now.