X'ED OUT: EdX announced an "expanded membership structure" that will allow other universities, foundations and organizations to join its community, which currently numbers 32 institutions. Notable additions (aside from schools) include the Smithsonian, International Monetary Fund, and the Linux Foundation, which will be offering its "Introduction to Linux" course (which usually costs $2,400) for free. The press release touts this as a move towards making a broader array of courses accessible--but only if you live in U.S.-friendly countries. Like Coursera, edX is subject to federal regulations that requires it to block students in Cuba, Iran and Sudan due to political quabbles.