Wikibooks is dedicated to developing and disseminating free, open content textbooks and other classroom texts. We currently host 5666 textbook modules, in various stages of development, from those needing a lot of work to those that are nearly perfect.
Masters thesis on social software (e.g., blogs, wikis, social bookmarking services)...and how they support learning, knowledge management, and communities of practice.
Meatball is a community of active practitioners striving to teach each other how to organize people using online tools. Members here are either community managers or are building supporting tools; MeatballOutreach lists some of our affiliated projects. We