Many professional organizations post excellent resources on their sites, so be sure to check them out.

Lists of Organizations
......AAMC List of Professional Organizations
......Art History Associations (Canada)
......National, Regional, and State Arts Agencies Westaf list
......Preservation Directory.com Historic Preservation

Foundations
......Robert Rauschenberg Foundation

Research Institutes
......Association for Research into Crimes Against Art
......British School at Athens
......Dumbarton Oaks
......Getty Conservation Institute
......Getty Research Institute
......Institute of Classical Studies (UK)
......International Centre for the Study of the
............Preservation and Restoration of Cultural Property
......Institute for Museum Ethics Seton Hall University
......International Foundation for Art Research

Organizations

....A
....* Advancing Women Artists
......AIGA - the professional asssociation for design
....* American Council of Learned Societies
......American Cultural Resources Association
......American Alliance of Museums
......American Association of State and Local History
....* American Nonprofits
......American Society for Aesthetics
......American Institute for Conservation of
..............Historic and Artistic Works
......Americans for the Arts
......Archives and Museum Informatics
.......Artists Rights Society
......Association for Living History, Farm, and Agricultural Museums
......Association of African American Museums
......Association of Art Editors
......Association of Art Histoy (UK)
....* Association of Moving Image Archivists
......Association of Art Museum Curators (AAMC)
......Association of Art Museum Directors
......Association of Historians of American Art
......Archeological Institute of America
......Association of Professional Art Advisors..
......Art Libraries Society of North America

....C

......College Art Association
....* Cultural Landscape Foundation

....E

......Early American Industries Association

....G

......Greater Hudson Heritage Network

....* new entry

I

..Institute of Classical Architecture and Art
..International Association of Art Critics, United States
..International Centre for the Study of the Preservation .........Restoration of Cultural Property (OCCROM)
..International Center of Medieval Art
..International Council of Museums (ICOM)
* International Institute for Conservation of
......Historic & Artistic Works (UK)
..Italian Art Society

M

..Medieval Academy of America
..Midwest Art History Society
..Museum Association of New York
..Museums Association (UK)

N

..National Art Education Association
..National Assembly of State Arts Agencies
* National Association of Women Artists
..National Center for Preservation Technology & Training
..National Trust for Historic Preservation
..New York Council of Nonprofits
..New England Museum Association (NEMA)

O

..Open Knowledge International

P

* Pew Center for Arts & Heritage
* Professional Organization for Women in the Arts

R

..Regional Alliance for Preservation

S

..Small Museum Association
..Society of Architectural Historians
..Society for Cinema and Media Studies
..Society for the Promotion of Hellenic Studies (UK)
..Society for the Promotion of Roman Studies (UK)
..Society for the History of Technology..s

V
..Visitor Studies Association
..Visual Resources Association

W

..WESTAF Western States Arts Foundation
..Women Who Draw “An open directory of female*
..........professional illustrators, artists and cartoonists.”

Banner: Thomas Rowlandson and Augustus Charles Pugin, Exhibition Room, Somerset House, 1808. Illustration in The Microcosm of London or London in Miniature, vol. 1. The three volume book was originally published between 1808 and 1811. Here's a link to a digital version of the 1904 edition, in which the illustration is in between pages 10 and 11.
Back / Home button is a detail of: The Town Mosaic. faience plaque,... 1700-1600 BCE. Photo by Zde
© Jan Mainzer