The Genetic Alliance has created Disease InfoSearch, a 
portal to the extensive and OA research on genetic diseases 
within the US National Library of Medicine.  From 
yesterday's announcement:

    Genetic Alliance today announced a new website feature 
designed to help patients, care givers, health 
professionals, and others easily locate and navigate the 
vast array of information on genetic disorders that is 
available from the National Library of Medicine 
(NLM)...The "portal" into NLM resources brings 
together, ... links to a wide range of information for 
patients and caregivers - from basic descriptions of a 
disease and its symptoms to the most current scientific 
research. ... This valuable new resource was developed in 
collaboration with the National Center for Biotechnology 
Information (NCBI), a division of NLM that creates and 
maintains public databases of biomedical information.