http://images.wellcome.ac.uk/

I don't know

* Wellcome Images is the world's leading source of images on the history of medicine, modern biomedical science and clinical medicine. * Teachers, students, academics and the public will be able to download and use images depicting 2000 years of mankind and medicine for free. * All content has been made available under a Creative Commons Licence, which allows users to copy, distribute and display the image, provided the source is fully attributed and it is used for non-commercial purposes: http://www.wellcome.ac.uk/doc%5Fwtx038410.html and http://images.wellcome.ac.uk/indexplus/page/Terms+of+Use.html * A Creative Commons license will foster innovative reuse of the collection. * This bold move creates a precedent and template for other institutions considering a more enabling licensing model. In fact, the Wellcome Trust seems to be encouraging the dissemination of such a model via funding awards to other institutions.