Open Matters is the official blog of MIT OpenCourseWare (OCW), sharing news and information about the project, its global audience and the wider world of open educational resources and online learning. Visit the OCW site at or contact the OCW staff at

MIT OpenCourseWare makes the materials used in the majority of MIT’s undergraduate and graduate courses—more than 2,150 in all—available on the Web, free of charge, to any user in the world. OCW receives an average of 2 million web site visits per month from more than 215 countries and territories worldwide. To date, more than 150 million individuals have accessed OCW materials.
MIT OpenCourseWare is supported by donations from site visitors, grants and corporate sponsorship including our Next Decade Alliance sponsors Ab Initio Software Corporation, Lockheed Martin, MathWorks, Dow Chemical and Accenture.