opencontext.org

open context is a web-based data publication channel that offers free access to editorially verified datasets, many of which are linked to print publications. open context has a suite of web services, apis, and increasingly participates in the linked data community to improve the quality and analytic value of these data. open context offers data publishing and technology consulting services to universities, government agencies, and research units interested in maximizing the value of scientific data, instructional media, and other content. the national science foundation links to open context as a data publishing service in reference to new "data access and management" policies.