City of London Libraries
Database of all public libraries in the City of London.
http://www.cityoflondon.gov.uk/services/libraries-and-archives/Pages/default.aspx
The British Cartoon Archive
Holds 80,000 original cartoon drawings by British 20th century artists published in the press. It also has a non lending reference library, a photo library and an on line database with 37,000 digitised images
Electronic Arts Intermix (EAI) Online Catalogue
Not for profit resource that fosters the creation, exhibition, distribution and preservation of media art.