American Association for the Advancement of Slavic Studies (AAASS)
http://www.fas.harvard.edu/~aaass/
American Association of Teachers of Russian and East European Languages (AATSEEL) http://clover.slavic.pitt.edu/~aatseel/index.html
Early Slavic Studies Association (ESSA)
http://clover.slavic.pitt.edu/~essa
Southeast European Studies Association (SEESA)
http://www.unc.edu/~rdgreenb/seesa/