Here's some interesting new course management system (CMS) (not Squeak) that tries to address this community's need for a CMS that agrees with its constructionist pedagogy.
http://moodle.org/doc/?frame=features.html
"Moodle is a course management system (CMS) - a software package designed to help educators create quality online courses. Such e-learning systems are sometimes also called Learning Management Systems (LMS) or Virtual Learning Environments (VLE). One of the main advantages of Moodle over other systems is a strong grounding in social constructionist pedagogy.
"Moodle is a software package for producing internet-based courses and web sites. It's an ongoing development project designed to support a social constructionist framework of education.
"Moodle will run on any computer that can run PHP, and can support many types of database (particularly MySQL).
"The word Moodle was originally an acronym for Modular Object-Oriented Dynamic Learning Environment, which is mostly useful to programmers and education theorists. It's also a verb that describes the process of lazily meandering through something, doing things as it occurs to you to do them, an enjoyable tinkering that often leads to insight and creativity. As such it applies both to the way Moodle was developed, and to the way a student or teacher might approach studying or teaching an online course. Anyone who uses Moodle is a Moodler."
Perhaps this community already has an unexpressed opinion of any perceived need or lack of need for a "course management system" such as this.
Cheers, Darius