National Coalition of Independent Scholars - http://www.ncis.org/
"The National Coalition of Independent Scholars (NCIS) was formed in January 1989 to facilitate the work of independent scholars. "

Independent Scholars Association of Australia - http://www.isaa.org.au/
"The Independent Scholars Association of Australia Inc is a network of scholars pursuing interests in the broad streams of the humanities, arts and sciences. Their work is produced in a variety of forms including book and journal publications, films and documentaries, script writing and journalism. As an association ISAA has no political affiliations but seeks to encourage all who, independently of institutions, offer well-founded studies of society, in the humanities and the sciences, or ideas of cultural significance."