OER Knowledge CloudBook ChapterOpening up education: The collective advancement of education through open technology, open content, and open knowledgeOpening up education: The collective advancement of education through open technology, open content, and open knowledge2008Casserly, CathySmith, Marshall S.Iiyoshi, ToruKumar, M. S. V.web 2.0textbooksteacher professional developmentOpenCourseWareMIThigher educationcollaborationchallengesUnited KingdomengMIT Press261-275978-0-262-03371-8http://www.carnegiefoundation.org/sites/default/files/publications/elibrary_pdf_788.pdfhttp://www.carnegiefoundation.org/sites/default/files/publications/elibrary_pdf_788.pdfelibrary_pdf_788.pdfLondon, United Kingdom