The Transverse Myelitis Association was founded in 1994 for people with rare neuroimmunologicd diseases, their family members, caregivers, and medical professionals. It has an excellent summary of Transverse myelitis: Symptoms, Causes, and Diagnosis by Joanne Lynn, MD. The TMA Forums are also very active and provide a great deal of information and contact with the TM community http://www.myelitis.org/phpBB2/
The National Institutes of Neurological Disorders and Stroke (NINDS) has an excellent Tranverse Myelitis Fact Sheet on this site.
The Transverse Myelitis Center at Johns Hopkins University is one of the best clinical centers for TM diagnosis and treatment in the United States.
The Wrong Diagnosis.com site has a comprehensive summary of causes and treatments of transverse myelitis.
There are not many clinical trials for transverse myelitis but www.clinicaltrials.gov is a good site to search for such trials.
This forum lists some of the latest published medical and research articles on transverse myelitis.
I'd like to add a site that helps raise funds for TM research:
Everything you need to participate in the Reading For Rachel program is located at the site. Adobe is needed to read much of it but several free download sites are avilable on site. For further information you can also contact Cathy@ ReadingforRachel.org. This is an excellent introduction for kids on how to help others or themselves. The site includes a great video of Rachel too.