Physics Education Resources: Feedback Wanted

i have recently written a resource letter for physics instructors, which contains a number of resources in the form of books, articles, journals, websites, and organizations. this is intended to provide some sort of practical insight into the field of physics education research so that instructors can ground their teaching practices in well-established research. a draft of this document can be found here, and if you have any interest in teaching physics and have feedback, i'd greatly appreciate it. the physics education community at the university of chicago is limited, at best. (image credit: the physics teacher)