EDS Cares foundation, this website has a lot of great information
http://www.ehlersdanlosnetwork.org/index.html
This is the National Institute of Health's description of EDS 3
http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=gene&part=eds3
The EDS national foundation
EDSers are often called Medical Zebras, and this site has some good info
This site deals with Marfans, and disability advocacy
The National Marfan Foundation
Loeys Dietz Foundation
A resource and message board for people with invisible illnesses
http://www.butyoudontlooksick.com/
Chronic babe, for "babes with chronic illnesses."