TBI Chat 
Pictures, stories, poem gallery, discussion boards, question of the week, TBI and ABI resources, and chatrooms are available for survivors of acquired or traumatic brain injury and their caregivers.
http://tbichat.org/The Brain Injury Information Network 
Providers of several listserv and email support groups on brain injuries and related conditions for survivors and caregivers. Also offers an online chat room.
http://www.tbinet.org/
Survivor Acceptance 
Providing support, resources, and inspiration for survivors of brain or other traumatic injuries, disabilities or illnesses.
http://survivoracceptance.com/
SoTBI (Survivors of TBI) 
Provides a forum for survivors of Traumatic Brain Injury to share experiences, strength, and hope with each other. (Yahoo Group)
http://health.groups.yahoo.com/group/SoTBI/
Brain Injury Association Network (BIAN) 
Virtual community comprised of survivors, family members, caregivers, and healthcare professionals.
http://groups.yahoo.com/group/bian/
Crow's Nest Online Support Group 
Offers support in the way of blogs, forums, games, news, information, and tools. Appropriate for survivors, caregivers, friends, and family of all types of brain and neurological injury.
http://www.crowsnestsupport.org/