http://icommons.org
iCommons is an organization created to help coordinate and support global efforts to share educational content on the Internet.
http://www.carnegiefoundation.org/programs/index.asp?key=38
The Knowledge Media Laboratory works to create a future in which communities of teachers, faculty, programs, and institutions collectively advance teaching and learning by exchanging their educational knowledge and experiences.
http://osportfolio.org
The Open Source Portfolio Initiative (OSPI) is a community of individuals and organizations collaborating on the development of the leading non-proprietary, open source electronic portfolio software available.
http://www.techlearning.com/blog
The Techlearning Blog includes posts on a wide range of current topics related to the intersection of K-12 education and technology.
http://www.classroom20.com
Classroom20.com is a social networking site for those interested in Web 2.0 and collaborative technologies in education.
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