6.7. Library Holdings
The card catalogues of hundreds of libraries from all disciplines (including the Library of Congress, which can be accessed on the WWW at lcweb2.loc.gov/catalog) are available over the net, and the number is continuously growing. The Libweb directory at sunsite.berkeley.edu/Libweb lists library catalogues which are accessible on the WWW. Libweb is frequently updated and currently provides addresses of over 1700 libraries from 70 countries. A more complete listing of astronomy-related libraries can be found at www.stsci.edu/astroweb/cat-library.html, the ``Libraries Resources'' section of the AstroWeb. The STScI library holdings are searchable at sesame.stsci.edu/library.html, and those of ESO at www.eso.org/libraries/webcat.html.