World Cat This link opens in a new windowProvides access to over 179 million records for all types of materials, e.g., books, music, videos, software, web pages, etc., cataloged by libraries in the United States and many other countries. Both interfaces provide complete bibliographic information for each item and enable the user to identify libraries that own each item. The Basic link leads to Worldcat.org, which is a free version with a simplified search interface.