Gateway to Europe’s national libraries, formerly called Gabriel. Allows the cross-searching of a number of European national libraries. Also includes links to the electronic resources and digital collections made available by each national library, along with information about each library’s collections and services.
Maintained by Berkeley Digital Library. An extensive system of links to libraries all over the world, though at times the link is to the home page of the institution rather than of the library of that institution.
This web catalog allows users to search the “Reference Collections” (the main collection of the British Library in London), or the Document Supply Center in Boston Spa, which is rich in technical reports, journals, and proceedings.
Catalog entries for a number of universities in the United Kingdom and Ireland, including Cambridge, Oxford, University of London, and Trinity College, Dublin. Can be searched by author, title, and subject (the last is actually a keyword search)