This is an alphabetical list of websites where you can learn a language online. Some sites provide content; others community; and a number have both. Some sites focus on learning one specific language, others cover a number of languages. Thanks to all those who have contributed to this list. 

1. 1-language.com - One-stop resource site for learning English and other languages

2. 200words-a-day - If you find learning new vocabulary a time-consuming grind, try boosting it with the 200 Words a Day! language learning programme: Spanish, French, German and Welsh

3. ABA English - Learn English

4. Abair Leatl - the materials are intended as a learning aid for people of any age group who wish to improve their speaking skill in Gaelige

5. Alibela - Language courses for free

6. Arabic2000.com - Online Arabic School

7. Arab Academy - the fastest way to learn Arabic

8. Arabic Pod - Learn Arabic with Arabic Pod

9. Autodidacy - Beginners Latin, Beginners Manadarin

10. Babbel - Learn languages online

11. bab.la - you can look up millions of translations in our dictionaries, test your language skills with thousands of quizzes, learn vocabulary with thousands of flashcard sets or find the right phrases for your birthday card in 14 languages

12. BBC Languages - Audio and video courses for beginners and intermediates in 36 languages

13. BBC Wales: Learn Welsh - Lots of resources to learn or improve your Welsh

14. BeeOasis - Big things in basic English

15. Blogs Exchange (BE) - is the first community of blogs dedicated to the learning and interchange of languages (Spanish and English so far).

16. Business Spanish - teaches you how to speak and write business and conversational Spanish by listening and repeating examples and simplified grammar (FREE)( rules

17. Busuu - the language learning community

18. byki - a powerful and personalized language-learning system. It locks foreign language words and phrases into your memory so that you can recall them perfectly and remember them forever.

19. CALES (Centre for Arabic Language and Eastern Studies) - teaches the Arabic language online through skype

20. CALL4ALL - exists to help anyone improve their language learning or teaching in English and most other major languages by the use of modern technology.

21. Capturator - offers online products and services for language learning.

22. Chinese Course - Learn Chinese online with the Flashcard system

23. ChinesePod - Learn Mandarin with free daily MP3 podcast

24. ChineseTeachers.com -  improve spoken Chinese with trained, native Chinese teachers 24/7, no booking

25. Chinese-Tools.com - Learn Mandarin Chinese quickly and easily!

26. ChineseVoice.com - Learn Chinese online with Beijing's best teachers

27. Clip Class' - learn French with videos: Free online activities: pronunciation (video tutorials), discovering grammar items, interviews...

28. Clip Class' Moodle Courses - French courses with teachers and audio-chat sessions

29. Collocation of the Week - for advanced learners of English

30. Conversation Exchange -  three types of language exchange: face-to-face conversation; correspondence; text and voice chat

31. DailyFrenchPod - Learn French now

32. Danish Here and Now - a free online course for Danish for Beginners.

33. Dave's ESL Cafe - a community site with job boards for teachers as well as forums for students and printable lessons/ worksheets

34. DeutschLern - Deutsch als Fremdsprache

35. Digital Dialects - free to use interactive games for learning languages and links to study resources

36. Easy Portuguese - Learn Portuguese

37. eduFire - live video language learning

38. eLanguageSchool.net - the largest website for learning multiple languages on the Internet

39. ELLA - online language learning software with interactive courses in 5 languages: English, French, German, Spanish and Dutch

40. elovivo - learn a new language, find language exchange partners, contribute to your language

41. English Baby -  social network site dedicated to teaching english providing lessons, videos, and collaboration.

42. EnglishCafe - the "perfect environment in which to encourage, practice and perfect your English language and world culture skills"

43. English Gateway - Online vocabulary lessons (with audio) for intermediate and advanced ESL learners. Exercises on idioms, phrasal verbs and collocations. Student/teacher blog and worksheets.

44. English Harbour - Learn English with top bloggers at  Vantage Point

45. English Page - free online English lessons and ESL//EFL resources

46. English Portal Community - Talk and Learn - Chatting with people from around the world will quickly develop your conversational skills

47. English Speak - a free and award winning system for learning to speak English

48. EnglishTalk.info - This site is aimed at adult students learning English as their second language (ESL) or English as a Foreign Language (EFL).

49. English Town Online - Learn to speak English

50. English Tube - with vids from the major video services like YouTube, Flickr, Blip, Vimeo, Veoh, Metacafe…

51. engoi - Free online language instruction

52. ESLPod - English as a Second Language Podcast

53. Eurocosm - Active Language Lab has language modules

54. Exam English - Free practice tests for learners of English

55. Forvo - all the words in the world pronounced

56. Free language - Social foreign language learning web 2.0 style

57. French Flash Cards - Learn German online with the Flashcard System.

58. FrenchOhLala - releases a new French lesson everyday. 10 minutes of French, brought to you by French teachers. Listen to free daily MP3 podcast lessons and download Lesson PDFs (Transcript, English translation,

59. funkyRussian - get the gist of Russian

60. Gapfillers - Language on the go - 'bite size' practice everyday and access to archives of grammar, listening and reading - plus much much more

61. German Flash Cards - Learn German online with the Flashcard System

62. Gulf Arabic - the dialect of Arabic native to the Arab nationals of the Gulf countries

56. GymGlish - Personalised English lessons via the Internet

57. How to learn any language - This website is made for people who love languages.

58. Huitalk - is a community of people learning languages and looking for a language exchange

59. Icelandic Online - a freecourse provided by Háskóli Íslands (University of Iceland)

60. ilovelanguages - catalogue of language-related Internet resource

61. Internet Polyglot - free language lessons online

62. Italian Flash Cards - Learning Italian online with the Flashcard System

63. Indo European Languages Tutorials - for anyone looking for free language resources in many of the Indo-European languages. Currently, there are 15 language tutorials available

64. InstantSpeak Chinese - an award winning new system designed by language experts to learn Chinese

65. italki - Everything you need to learn a language

66. JaponesePod101 - The fastest, easiest and most fun way to learn Japonese

67. Kan du tale dansk - Danish for foreigners

68. Kan Talk - makes it easy and fun to practice spoken English

69. Lang-8 - Language exchange SNS

70. Language 101 - Spanish, French, Russian or German online using movie clips, songs, and lessons.

71. Language Links - Travelling the world from your desktop

72. Languages Online - French, German, Italian and Spanish

73. langoLab - Language Immersion Through Online Video and Text

74. Learn Arabic Online - for Writing, Listening, Grammar, Counting, Small Phrases and Exercises

75. LearnEnglish - is a portal that links to all of our websites for teachers and learners of English (from the British Council)

76. Learn English - site is for elementary and intermediate learners of English.
    You can study grammar or vocabulary topics and try one of the 400 exercises and language games.

77. Learn English Online - for over 10 years Learn English has been the free and independent web site for EFL/ESL learners and teachers.

78. Learn French by Podcast - audio podcasts for learners of French as a foreign language

79. Learn Greek - teaches the modern Greek language online.

80. Learn Greek Online - the most complete site for learning Greel

81. Learn Hebrew - free Hebrew vocabulary website offering 46 topics in over 1700 Hebrew words and phrases.

82. Learn Hebrew Online - with Israel's best teachers

83. Learn Indian languages - Learn to speak Indian languages in English, Bengali, Gujarait, Hindi, etc

84. Learn Italian - Learn Italian guide, all about how to learn italian and how to speak italian.

85. Learning Portuguese - Russell Walker shares his discoveries and assist others in learning languages, and of course Portuguese in particular.

86. LearningThai.com - Learning Thai the easy way

87. LearnItalianPod.com - Learn Italian with free podcasts

88. learnitlists - Language learning by learning lists of vocab

89. Learn Some Greek - Learn the Greek language and a bit of the language

90. lernu - a multilingual website which aims to inform internet users about Esperanto and help them to learn it, easily and free of charge.

91. Lingofriends - language exchange

92. Lingorilla - the "first global video community for learning languages"

93. LingoZ - Definitions and translations in 8 languages

94. Linkua - Learn with a language tutor

95. Listen2Russian - for people who want to achieve a basic understanding of the Russian language.

96. LiveMocha - The social way to learn a language

97. London Speaks French - a language agency based in London and dedicated to French tuition and French lessons in London and anywhere PC to PC

98. Loquella - Learn without borders

99. Macmillan Business English Online - offers a wealth of free additional English Language Teaching resources to add to your Business English lesson

100. Madinah Arabic - Free Arabic course

101. Mango - Mango is designed to equip you with conversational abilities from the very start.

102. Maria Oliveira's Language Learning - Learn Portuguese for free

103. Master Russian - gives you the help you need to master Russian grammar, learn new vocabulary, practice in speaking and reading Russian, and learn fascinating facts about Russian culture and people.

104. Medlock Method - learn Chinese with the Medlock method

105. Milingua - Learn Hebrew wherever you are, whenever you want

106. MinDynasty - private Mandarin lessons at your desktop

107. Mi vida loca - a fun and interactive course, which is available for free. It draws you into a web of intrigue dealing with real natives and you can't help but learn Spanish!

108. Mixxer - a language exchange community for everyone

109. MSKEnglish - Learning English online with live English classes

110. My German Class - Mini-courses and video podcasts

111. My Happy Planet - Learn a language, make friends, have fun

112. My Language Exchange - Find a partner at the online community and practice your second language with a native speaker who is learning your language

113. Myngle - The new way to learn languages

114. MyRussian.org - Free Russian lessons

115. Netdansk - a virtual school that offers Danish language tuition for persons with higher education.

116. Nihongo o Narau - This site is dedicated to teaching Japanese to speakers of English.

116. Online Japanese Language and Culture Resource Community - Since 1996, Japanese-Online.com has been providing free learning services to people who wish to study the Japanese language

117. Online Spanish Course - Learn Spanish online with the Flashcard system

118. OpenLearn: modern language resources from the Open University

119. Palabea - the international platform for language learning

120. Paris by Pod - learn French, live from Paris!

121. PhraseBase - Conversational Foreign Language Learning Social Network

122. Popling - Learn French, German, Italian, Indonesian, Japanese Portuguese, Spanish without studying

123. Prime Language Services  - specializes in Online Russian Teaching / Tutoring, where you communicate with a Certified Native Russian Teacher live via IM / webcam. First Trial Lesson is offered for free!

124. Radio Lingua Network - language-learning which fits your lifestyle

125. Rosetta Stone - Learn naturally, engage interactively, speak confidently and best of all — have fun

126. RusssianLessons.net - Learn Russian for free

127. Russian Video Blog - It includes a free video lesson series for learning to speak Russian, as well as free video lessons that teach how to read Russian.  

128. Sanbit - free effective language learning

129. Saynihao.org - the community for Chinese language learners and people interested in China

130. Sclipo - Social learning network

131. Shared Talk - Your language exchange network

132. Sherton English - English in 52 weeks (for Spanish speakers)

133. Sonia-Portuguese.com - As a Brazilian native speaker and teacher, Sonia focuses on Brazilian Portuguese.

134. SoZiety - Language exchange via Skype

135. Spanish Pod - Learn Spanish on your terms with mobile podcasts and a global community of Spanish learners.

136. Spanish Unlimited - The right place to Learn Spanish & meet new friends

137. Spanish Word of the Day - A daily email with new vocabulary

138. Speak - free interactive language lessons by econtrader

139. Speak7 - Learn Arabic

140. SpeakingCam - a social network for language learners and tutors, brings you one-on-one tutoring opportunities with native speakers in a social way

141. Splendid Speaking - Podcasts for advanced learners of English who want to develop their top-level speaking skills and communication strategies

142. STELLA - Online language learning

143. talkConMigo - provides a central location where people of all ages can find others looking to learn, or improve a second language.

144. Talk Irish - free Irish Podcast and Flashcard Service

145. The Japanese Friend Exchange - the place to find Japanese friends, penpals, language exchange, relationships

146. TOEFL iBT Online Practice - Realistic and best quality TOEFL iBT practice tests and learning resources delivered online

147. To Learn Arabic - Arabic for non-native speakers

148. The Rich Morning Show - Cartoon English lessons for kids and adults

149. top language community - the definitive language community site for bilingual and multilingual people living in London, UK, and Ireland.

150. TravLang - Foreign languages for travellers

151. UniLang Language Community - offers many language resources for a wide variety of languages.

152. Verbaplanet - the award winning new way to learn how to speak a foreign language.

153. Vores fćlles sprog  - Danish grammar explained in English and other languages

154. What does that mean? - English idioms, catchphases, buzz words and slang

155. Wijng - grammar, reading and listening lessons to learn English

156. Word Drill - Select a topic, a word will appear, type your translation

157. World Champ - The language learning network

158. World Languages Podcasting - Listen to conversations about language and culture in Australia in several different languages.

159. xlingo - Language exchange community where you can find partners from around the world to practice and improve your language skills.

160. Yappr - where millions of English learners throughout the world are improving their English by meeting and helping each other

Other lists

• Free language learning resources, UniversitiesandColleges.org