4   Language

40   Language
41   Linguistics
42   English and Old English (Anglo-Saxon)
43   Germanic languages. German
44   Romance languages. French
49   Other languages

400   Language

  Canadian Association of Second Language Teachers (CASLT)
  École des langues vivantes, Université Laval
  LangCanada.ca - Teaching and Learning French and English as a Second Language in Canada
  Language (Canadian Encyclopedia)
  Language Portal of Canada (Government of Canada)
  Languages In Canada (CBC News Interactive)
  Languages of Canada (Ethnologue.com)
  Saskatchewan Organization for Heritage Languages

410   Linguistics

  Canadian Linguistic Association
  Cree Hand Signals
  Dictionary (Canadian Encyclopedia)
  Translation Bureau (Public Works and Government Services Canada)

420   English and Old English (Anglo-Saxon)

  Beyond the Letters - a Retrospective of Canadian Alphabet Books (Library and Archives Canada)
  Canadian English (Wikipedia)
  Canadian Raising (Wikipedia)
  Canadianisms
  Comparative Lexicography of French and English in Canada (University of Ottawa)
  Dave (VE7CNV)'s Truly Canadian Dictionary of Canadian Spelling
  Dictionary of Newfoundland English Online
  ELAN (English Language Arts Network (Ontario))
  English Language (Canadian Encyclopedia)
  English Language Training College (ELTC)
  ESL in Canada Directory
  HyperGrammar
  Language Nook of the Government of Canada (Translation Bureau, Public Works and Government Services Canada)
  Language Training Centre (Canada School of Public Service)
  Languages Canada
  Literacy On Line - Activities to Support Exceptional and ESL Students
  Official-Languages Programs (Council of Ministers of Education, Canada)
  Official Languages Support Programs (Canadian Heritage)
  Termium (Translation Bureau, Public Works and Government Services Canada)
  TESL Canada
  Translation Bureau (Public Works and Government Services Canada)

430   Germanic languages. German

  Canadian Association of Teachers of German
  CAUTG (Canadian Association of University Teachers of German)

440   Romance languages. French

  Alliance française
  Beyond the Letters - a Retrospective of Canadian Alphabet Books (Library and Archives Canada)
  CAIT (Canadian Association of Immersion Teachers)
  Chiac Language (Wikipedia)
  CIRAL (Centre interdisciplinaire de recherches sur les activités langagières)
  CommunAction (Industry Canada)
  Comparative Lexicography of French and English in Canada (University of Ottawa)
  Conseil supérieur de la langue française, Québec
  Cortexte
  CPF (Canadian Parents for French)
  Dictionnaire québécois - français
  Dictionnaire québécois - vocabulaire québécois
  Exercices de français
  French Language (Canadian Encyclopedia)
  French Language in Canada (Wikipedia)
  French Language Services (Manitoba)
  Grand dictionnaire terminologique (Office de la langue française, Quebec)
  Impératif français
  Joual (Wikipedia)
  Joulavert.com
  Language Nook of the Government of Canada (Translation Bureau, Public Works and Government Services Canada)
  Language Training Centre (Canada School of Public Service)
  Languages Canada
  Office de la langue française
  Official-Languages Programs (Council of Ministers of Education, Canada)
  Official Languages Support Programs (Canadian Heritage)
  Quebec French (Wikipedia)
  Termium (Translation Bureau, Public Works and Government Services Canada)
  Translation Bureau (Public Works and Government Services Canada)

490   Other languages

  Gaelic Language and Culture

  Banking Our History - Building Bridges to the Future
  Cree Culture (Cree Cultural Institute)
  Cree Indian
  First Nations Confederacy of Cultural Education Centres
  First Nations Languages of British Columbia
  FirstVoices - Language Legacies Celebrating Indigenous Cultures (First Peoples' Cultural Foundation)
  Innu-aimun.ca (Memorial University of Newfoundland)
  Inuktitut Living Dictionary
  Iroquois Language & Songs
  Languages of Canada (Ethnologue.com)
  Maliseet - Passamaquoddy Dictionary (Mi'kmaq - Maliseet Institute, UNB Libraries' Electronic Text Centre)
  Maliseet Texts
  Naskapi Lexicon (Library and Archives Canada)
  Native Languages of the Americas
  Native Peoples, Languages (Canadian Encyclopedia)
  Nehinawe - Speak Cree
  Ohwejagehka: Ha`degaenage:
  Online Cree Dictionary
  Online Cree Dictionary (Children's Version)
  Our Languages (Saskatchewan Indian Cultural Centre)
  Yukon Native Language Centre