COPAC
COPAC combines the catalogues of more than one hundred research libraries in the UK and Ireland, allowing them all to be searched simultaneously. It includes the holdings of the British Library and many university and specialist libraries. Quick or advanced search screens are available and there is also a special search facility for finding maps in library collections. COPAC is run by Jisc, a non-profit organisation based at the University of Manchester which provides digital services for the UK academic community.