The NIH sponsors a centralized image service for the dissemination of primarily scientific, biomedical, and disease related imagery. Images posted to the NIH Image Gallery are considered free-to-use with credit.
Wikimedia Commons is a media file repository making available public domain and freely-licensed educational media content (images, sound and video clips). It acts as a common repository for the various projects of the Wikimedia Foundation.
"CODI serves as a community resource for consumers and professionals by providing disability information in a wide variety of areas. It consists of both an Internet Directory of Disability Information and a repository of electronic disability documents, dating back to the early 1990s. Many of the documents on CODI are publicly available nowhere else on the Internet."
"NCD is an independent federal agency and is composed of 15 members appointed by the President, by and with the advice and consent of the Senate. It provides advice to the President, Congress, and executive branch agencies to promote policies, programs, practices, and procedures that guarantee equal opportunity for all individuals with disabilities, regardless of the nature or severity of the disability and to empower individuals with disabilities to achieve economic self-sufficiency...."
"The National Institute on Disability and Rehabilitation Research (NIDRR) provides leadership and support for a comprehensive program of research related to the rehabilitation of individuals with disabilities. All of our programmatic efforts are aimed at improving the lives of individuals with disabilities from birth through adulthood."