Angioma Alliance is a non-profit international voluntary health organization created by people affected by cavernous angioma (cerebral cavernous malformations).
AVM Survivors Network
AVM Survivors Network is an online community for those who have had an arteriovenous malformation (AVM). It provides a forum, blog, and chat room.
The Brain Aneurysm Foundation
The Brain Aneurysm Foundation provides support networks and educational resources to raise public awareness regarding early detection and treatment of brain aneurysms.
National Organization for Rare Disorders
The National Organization for Rare Disorders (NORD) is a unique federation of voluntary health organizations dedicated to helping people with rare "orphan" diseases and assisting the organizations that serve them.