Mac OS X: http://www.apple.com/macosx/
Maison de la Francité: http://www.maisondelafrancite.be/
Malbreil, Xavier (site): http://www.0m1.com/
Manifeste du web indépendant: http://www.uzine.net/article60.html
Manybooks.net: http://manybooks.net/
Marabout: http://www.marabout.com/
MARC (Bibliothèque du Canada): http://www.collectionscanada.ca/6/19/
MARC (British Library): http://www.bl.uk/services/bibliographic/exchange.html
MARC (Library of Congress): http://www.loc.gov/marc/
McLuhan, Marshall (site): http://www.marshallmcluhan.com/