Desketa - Deskiñ brezhoneg enlinenn / Apprendre le breton en ligne / Learning Breton online / Aprender el bretón en línea / Online Bretonisch lernen / Dysgu Llydaweg ar-lein.
www.celtic-languages.org/Breton/Resources - Breton resources, courses, dictionaries, media, etc.
Kervarker - Cours de breton / Breton lessons / Curso de bretón / Bretonischkurs.
hizivandeiz.free.fr/loadnevez/242.htm - Cours de breton.
en.wikiversity.org/wiki/Portal:Breton - Lessons, some information, and some resources.
forum.unilang.org/viewtopic.php?f=79&t=5877 - An introductory forum thread.
www.breizh.net/icdbl/saozg/endangered.htm#Top - Information on the language.
www.dicts.info/vocabulary/?l1=breton - Vocabulary grouped in topics.
thevore.com/breton - Breton words list.
www.arkaevraz.net/dicobzh/index.php - Dictionnaire breton-français, français-breton.
www.freelang.com/enligne/breton.php - Dictionnaire breton-français, français-breton.
www.lexilogos.com/breton_dictionnaire.htm - Dictionnaire breton-français, français-breton.
Llydaweg i'r Cymro, by Bowen (1977)
Elementary Breton-English & English-Breton Dictionary / Geriadurig Brezhoneg-Saozneg ha Saozneg-Brezhoneg, by Delaporte (1995)
Brezhoneg... Buan hag Aes, by Denez (1972)
Cyflwyno'r Llydaweg / Brezhoneg... Buan hag Aes, by Denez (1972), trans. Williams (1981)
Grammaire du Breton Contemporain, by Favereau (1997)
Breton Grammar, by Hemon (1985)
Kentelioù Brezhoneg Diazez / Cwrs Llydaweg Sylfaenol, by Hincks
A Grammar of Modern Breton, by Press (1986)
Colloquial Breton: The Complete Course for Beginners, by Press and ar Bihan (2004)
Geiriadur Cymraeg-Llydaweg / Geriadur Kembraeg-Brezhoneg, by Williams
The Breton Language: It's Present Position and Historical Background, in The Celtic Languages, 1st edition, by Humphreys (1993)
Breton, in The Celtic Languages, 2nd edition, by Press (2009)
Breton, in The Celtic Languages, 1st edition, by Stephens (1993)
Language, Culture, and Identity in Brittany - The sociolinguistics of Breton, in The Celtic Languages, 2nd edition, by Timm (2009)