The National Library of Canada hosts a comprehensive list of links to library catalogues and libraries in Canada at http://nlc-bnc.ca/canlib/eindex.htm . The list of links is organized both by region and by type of library. Academic and public libraries often offer instructional courses on searching the Internet, as well as bibliographic and other databases. Many library catalogues are searchable online and can be used to identify and locate books, reports or journals relevant to your research. Materials unavailable at a location in your area may be accessible through interlibrary loan. Library websites often feature subject guides, virtual libraries or links to resources on a wide range of topics.