International database for bibliographic information catalogued by many thousands of libraries...

Provides links to Asian digital libraries, library schools, publishers and professional organizations...

A searcb interface from the United States National Archives that "allows the public to search for free through 85 million documents in 475 files amassed by more than 30 federal agencies...

An online union catalog which "provides access to the merged online catalogues of 22 of the largest university research libraries in the UK and Ireland (plus the British Library)...