You can find out about these organization's annual conferences by visiting their home pages.
National Council for Social Studies
http://www.ncss.org/
The New York State Council for the Social Studies
http://www.nyscss.org/
National Council for History Education
http://www.nche.net
Organization of American History
http://www.oah.org
National Association for Multicultural Education
http://www.nameorg.org/
Morningside Center for Teaching Social Responsibility (formerly Educators for Social Responsibility, New York City)
http://www.morningsidecenter.org/
National Staff Development Council
http://www.nsdc.org/
Phi Delta Kappa
http://www.pdkintl.org/
The National Middle School Association
http://www.nmsa.org/
Middle States Council for the Social Studies
http://www.mcss.org/
The Association of Assistant Principals of New York City
http://www.aapny.org/
Greater Metropolitan New York Social Studies Conference
http://www.edusolution.com/socialstudies/atss/gmny.htm