Editing Hal Abelson (section)

===Free software movement===
Abelson and Sussman have also been a part of the [[free software movement]] (FSM), including serving on the [[board of directors]] of the [[Free Software Foundation]] (FSF).<ref name="fsfboard">{{cite web |url=https://www.fsf.org/about/staff-and-board |title=Staff and Board |author=<!--Unstated, staff writer--> |date=<!--Undated--> |website=[[Free Software Foundation]] |access-date=7 September 2019}}</ref>

Abelson is known to have been involved in publishing [[Andrew Huang (hacker)|Andrew Huang]]'s ''Hacking the Xbox'' and [[Keith Winstein]]'s seven-line [[Perl]] [[DeCSS]] script (named [[qrpff]]), and [[Library Access to Music Project]] (LAMP), MIT's campus-wide music distribution system. The [[MIT OpenCourseWare]] (OCW) project was spearheaded by Hal Abelson and other MIT faculty.<ref name=AwardACM2011/><ref>{{cite book |title=Reclaiming Fair Use: How to Put Balance Back in Copyright |last1=Aufderheide |first1=Patricia |last2=Jaszi |first2=Peter |publisher=University of Chicago Press |year=2011 |isbn=9780226032443 |page=53 |url=https://books.google.com/books?id=VWroer9-si8C&pg=PA53}}</ref>