The Amen Clinic - The place to go for information on SPECT scans, and ADD/ADHD.  Features a forum, a newsletter and one of the few useful online tests I've come across.  For the official conflict of interest statement: I am a patient at an Amen clinic.  But after looking at the site and reading the forum you'll understand why we have several of Dr. Amen's books up at the bookstore.

Cuckoo Comics - Sure, it starts with an autobiographical serialized graphic novel about Madison Clell's adventures with Dissociative Identity Disorder.  But the site itself is a wealth of information about D.I.D., with hospital ratings, coping with D.I.D., background information and more.

Trigeminal Neuralgia Association information and support for pain "that is described as among the most acute known to mankind."   More likely womankind, as women, and usually older women, are the target audience for this form of neuropathic pain.  This is where your trigeminal nerve, the longest nerve in your head, decides to flip out on you.  Tegretol (carbamazepine) is the first line of treatment.  But what happens if you and Tegretol don't get along?  This site will tell you more about treatment options, the latest research, support, patient advocacy and everything else you need to take control of this bastard of a condition. 

On the subject of hurt, pain, ouch - American Syringomyelia Alliance Project provides all the information and support you need for syringomyelia, Chiari malformation and related disorders.  If you know what those are, go there.  If you don't know it can be summed up by your spine wanting to kill you slowly and painfully and doctors wanting to save you with repeated painful treatments.  Hey, which sucks less, right?

BPD World - Help for people with borderline personality disorder and related disorders, such as self-injury, depression, and avoidant personality disorder.

Psyke.org - Information for and about people who self-injury.  Books, articles, links to other resources, lots of blogs and personal stories.

Something Fishy Comprehensive website providing information and support to help people recover from a variety of eating disorders.  Anorexia, bulimia, binge eating, compulsive over eating, men, women, you name it.  Treatments, including medications, dealing with doctors and the stupid things they'll say, links to other sites, how to live with an eating disorder yourself or in your family, and much more.  There's also a very active forum, which is the main draw to the site.

Lupus Foundation of America - Autoimmune disorders are often a fact of life amongst the mentally interesting.  Especially, but not exclusively, if you're a girl.  One of the nastier ones is lupus.  So here's what passes as a central clearing house for info on lupus.  Too bad that it sucks.  Wanna find a doctor or join a support group?  Sorry, you can't do it online, you have to contact your local chapter.  Live in a state that doesn't have a local chapter (e.g. Montana, with a huge cluster of lupus thanks to the actions of W.R. Grace up in Libby)?  Too bad.  Drive to Salt Lake City.  At night.  The non-suck-ass content is useful enough - news, basic info, all the clinical trials you can stomach.  But, really, folks, you'd think for a condition that keeps people inside most of the time they'd have more actual content online.

Secrets of Surviving Shift Work - Ostensibly a site for people who work after hours and have to sleep during the day, there's actually a lot of quality information here that is useful for people with sleep disorders.  Plus the mentally interesting have jobs, and the labor information is good as well.

The Alzheimer's Association

Parkinson's Society of Canada

Open Directory for Mental Health - Literally thousands of web pages.  Good luck.

Your best chance to find what you're looking for is on the sites that cover a Little of Everything.  Really, many of them do cover practically everything, just like we try to do.

See also our page of support groups with a little bit of everything.