Check it out if you get a chance. You can also find them on facebook at:
From the website:
In 2009, a core group of adult siblings founded the Massachusetts Sibling Exploratory Committee (MA-SEC) to investigate the needs of siblings of people with disabilities across Massachusetts, and the types of supports that were available to meet those needs. MA-SEC quickly expanded into a diverse network of adult siblings, parents of young siblings, mental health professionals, and sibling service providers, all of whom were connected to sibling issues on a personal or professional level. In 2010, MA-SEC evolved into the Massachusetts Sibling Support Network (MSSN), and in 2011 we became a non-profit organization with bylaws governed by a Board of Directors. The MSSN collaborates with key stakeholders in the disability field, including the Sibling Leadership Network, The ARC, the Federation for Children with Special Needs, the Department of Developmental Services (DDS), and the Massachusetts Parent Advisory Committee (MassPAC), among many other agencies and stakeholders.