Use Google Advanced Search to identify websites originating in research centers that specialize on your topic at the college and university level by limiting the results of your search to websites with the .edu domain. Websites with the domain .org will often lead you to organizations with a special interest/expertise in a given topic (such as a museum, society etc.) Combine several search terms in the boxes to focus for the best match!
Website "portals" or "gateways" provide you with webliographies of the best websites available for academic research. They often include the bibiographic information ( webmaster/author, date created, sponsoring organization) as well as a brief summary of its content.
Try IPL2 (Internet Public Library) founded at Drexel University