American Historical Association
http://www.historians.org/

American Society for Eighteenth Century Studies
http://asecs.press.jhu.edu/

The Charles Homer Haskins Society
http://www.haskins.cornell.edu/

Folger Shakespeare Library & Folger Institute
http://www.folger.edu/
http://www.folger.edu/institute/

H-Net: Humanities and Social Sciences Online
http://www.h-net.org/

Medieval Academy of America
http://www.medievalacademy.org/

Renaissance Society of America
http://www.rsa.org/

Sixteenth Century Society and Conference
http://www.sixteenthcentury.org/

Society for Reformation Research
http://www.reformationresearch.org/