Most entries are associated here with real-world institutions, but primarily in the interest of supplying context rather than implying formal sponsorship by the citedinstitution. For museums proper (category D), this official sponsorship is a given --in facta criterion for inclusion in the category. It's true as well for most other entries in this list , but two classes ofpotential exceptions deserve note. For virtual collections (category E) orjump-lists (category B), one cannot invariably assume sponsorship or endorsement bythe organization that "owns" the server site. Within both of these categories the key individuals behind a citedresource's creation are identified in parentheses after the citation (provided this information is publicly available).