MIT began to offer virtually all of its course content over the web for free in 2002 through its OpenCourseWare (OCW; http://ocw.mit.edu) program. Many of the classes have been translated into eight languages, including Chinese, Spanish and Turkish. OCW has a separate program for independent learners called OCW Scholar (http://ocw.mit.edu/courses/ocw-scholar/). These courses are more complete than typical OCW offerings and feature supplemental multimedia materials. Subjects covered include biology, mathematics, and microeconomics.