Grand Rapids Linux User Group: Promoting Linux in Grand Rapids, Michigan. Site contains a mailing list, its archive, meetings information and links.
Greater Lansing Linux Users Group: An organization for users of Linux and associated free software in Lansing, Michigan (USA) and vicinity.
Kalamazoo Linux Users Group (KLUG): A linux user group based in Kalamazoo, Michigan
MDLUG: Metro Detroit Linux Users Group. News and events, polls, meeting times and fests.
Washtenaw Linux Users Group: Upcoming meetings, sound files of past speeches, rescourse, and a mailing list.