SSI – Making a Difference 2016 SSI - Making a Difference 2016 The Speech & Stuttering Institute2016-08-31T17:39:17-04:00August 31st, 2016| Share This, Choose Your Platform! FacebookTwitterRedditLinkedInEmail About the Author: The Speech & Stuttering Institute The Speech and Stuttering Institute is a non-profit organization dedicated to improving the quality of life for those with speech and stuttering challenges.