The North American Council on Adoptable Children (NACAC) is looking for submissions for their 39th annual conference, to be held in Toronto, Ontario next August 7-10, 2013. The deadline for submissions is Tuesday, November 2, 2012.
From the NACAC website:

NACAC encourages adoptive and foster parents, child welfare professionals, adoptees, birth parents, former foster youth, researchers, therapists, and other child advocates to submit workshop and institute proposals for the 2012 conference. Three-hour institutes will take place Thursday, August 8. Workshops of 90 or 120 minutes will run from Thursday morning through Saturday.

More information along with a downloadable PDF of the call for proposals is available here.