Natural Languages

• Afro-Asiatic
• Algic
• Altaic
• Australian
• Austro-Asiatic
• Austronesian
• Caucasian
• Dravidian
• Indo-European
• Iroquoian

• Na-Dene
• Niger-Kordofanian
• Nilo-Saharan
• Papuan
• Quechumaran
• Sign Languages
• Sino-Tibetan
• Siouan
• Tai-Kadai
• Uralic

• Endangered Languages@

• Japanese
• Korean
• Languages of Africa
• Languages of the Americas
• Languages of Eurasia
• Pidgins and Creoles

• Kids and Teens: Language and Literature: Foreign Languages 

• Ethnologue  - Database of the world's languages, organized by map, language family, country, and language name.

• busuu.com  - Community-based site which helps users learn English, French, Italian, and Spanish through a variety of modules and community member feedback.
• Compañeras Creativas  - Monthly magazine for Spanish language teachers which provides ready-to-use lesson plans.
• Convent of Pater Noster  - Presents the Lord’s Prayer in different languages and dialects.
• Dutch For Beginners  - Providing an introduction to Dutch grammar and vocabulary.
• European Bureau for Lesser Used Languages  - Promotes European linguistic diversity, linking continental language communities.
• Executive Language Training  - Provides accent reduction, business English, ESL, Spanish, Chinese, French, German, Italian, Portuguese and other language training courses to executives, professionals and fortune 500 companies.
• Grammars and Language Courses  - Grammars and language courses for over 100 languages on line, on CD ROM, and in books.
• iLoveLanguages  - Comprehensive catalog of language-related Internet resources.
• Inuktitut Tusaalanga  - Resource for learning the Inuit language, which is a one of the Eskimo–Aleut languages. Master pronunciation, vocabulary, and find a variety of dialects to choose from.
• Jennifer's Language Page  - Shows tutorials on saying simple words and phrases in hundreds of different languages.
• LANGMaster  - Offers free online language lessons for learning Spanish, German, English, French and Italian.
• Language Families  - Explains how languages in the same family are related languages with a common ancestor and shares common grammatical features.
• Language Miniatures  - Mini-essays about human language in its endless kaleidoscope of aspects, such as the social, the mental, the historical, the structural.
• Learn Japanese Language  - Learn to speak, read, and write Japanese Kanji, Hiragana, and Katakana from these free online lessons.
• The List of Language Lists  - Lists e-mail distribution lists devoted primarily to the linguistic study of individual languages and groups of languages.
• Lyrics Training  - Helps users learn a new language by playing popular music videos in that language and pausing to ask for the next lyrics in the song.
• One Minute Languages  - Offers a series of short lessons in a variety of languages, including Danish, Catalan, Japanese, and Mandarin.
• Rosetta Project  - A project to create long term archives of the world's languages; includes a description, with progress reports, and details of publicly accessible online resources. Includes a link to their resources on The Internet Archive.
• Sheltered Initiation Language Learning  - Professor Zev bar-Lev's innovative way to learn language. Site gives mini courses for three, Hebrew, Italian and Japanese, but offers thirty total including ESL.
• Skritter  - Teaches Japanese and Chinese characters by using a combination of animations, repetition, and tutorials.
• Turkishplus  - Interactive website which provides a wide range of learning materials and professional support to Turkish-language learners.
• VerbalPlanet  - An online language tuition marketplace allowing language students and language tutors around the world to learn and teach modern languages online using Skype.
• Verbling  - Easiest way to learn a language. Sign up and speak with native speakers through live videos instantly.