Esperanto
Computing, FAQs, Learning, Native Speakers, Organizations, A Brief History, Esperanto, Esperanto - The New Latin for the Church and for E, Esperanto Access, Esperanto Koresponda Servo, Esperanto Panorama, Esperanto Phrases, Esperanto.org, Esperanto: Multlingva Inform-Centro, esperantomobilo
Ido
Elektronala dicionario de la linguo internaciona I, Ido, Ido, Esperanto Reformita / Ido-Skolo, Ido, linguo internaciona, universala, Ido-Glosa Comparison, Ido: The International Language, Idolisto, North American Ido Society, The International Language Ido, The North American Ido Society Forums
Interlingua
Dictionaries, Learning, A Short Grammar of Interlingua, Alyssa St. James in Interlingua, Basic Interlingua English Dictionary, Grammar of Interlingua, Interlingua, Interlingua, Interlingua-English: Introduction, Interlinguano, Introducing Interlingua, Latino Moderne
Occidental
Bibliotheca Occidental, H. Jacob on Occidental, Interlingue-Union, Occidental Language
A Universal Interlanguage: Some Basic Consideratio
This paper by Hartmut Traunmüller treats some basic questions concerning the adequacy of interlanguages. It is focused on constructed languages suggested for global use. [PDF file]
Aiola: Linking the Global Community Through Langua
Aiola is a new constructed language that achieves a unique clarity of expression. Presents a history of the development of Aiola, an introduction to the language, and interactive exercises.
Ameryske Tunga: Amerykan Language
Amerysk is a constructed language developed in 1979 for members of the Asatru (Norse Pagan) faith.
Atlango
A short grammar and vocabulary list. Based on Latin and intended to be viewed as a candidate for becoming the common language for the European Union.
Auxlangs
Opinions and information on Esperanto, Ido, Folkspraak, Glosa and Volapük by William W. Patterson.
Basic English
An encyclopedia article on Basic English, including sections on grammar, criticisms, and word lists.
Bruce R. Gilson's Language Page
With links to specific languages, descriptions of their backgrounds and language-related links.
Earth Language
Known also as EL is a rational multi-method language designed by its creator Yoshiko McFarland.
Europanto
Archives of Europanto in Europanto, English and French.
Europanto Language
A brief encyclopedia article on the international auxilliary jest language.
International Auxiliary Language
Document presented by the Transnational Radical Party and Esperanto International Federation
International Auxiliary Languages
Site with various books and articles on international auxiliary languages, plus links to related sites.
LangX: Towards a Universal Language
Description of LangX, including word lists.
Lingua Franca Nova
Created by Dr. C. George Boeree to be a particularly simple, consistent, and easy to learn language for international communications.
Mondlango
Mondlango is an international auxiliary language designed for neutrality and ease of learning.
Novial Language
An encyclopedia article on Novial, including comparison with Esperanto and Ido.
Novial98
Ongoing revision project to revive and improve Novial language and update the vocabulary though remaining faithful to the general directions of creator of the language Otto Jespersen.
ome mentions of a Universal Language in the Bahá&a
Bahaï position on a universal language.
Otto Jespersen
His work for an International Auxiliary Language, By Henry Jacob, 1943.
Proslava Tutorial and Dictionary
A language with common Slavic word stock and syntax containing main features of all Slavic languages such as substitution of word order for noun articles, perfective and imperfective aspects, synthetical type of morphology.
Romanid
Documentation site of Romanid, an interlatinid naturalistic constructed language.
Romanova
An inter-Romance constructed auxiliary language based on the four major Romance languages, and is intended for international communication among speakers of Latin languages.
SASXSEK (Earth Language)
SASXSEK is a simple IAL designed to minimize the learning curve through a small core vocabulary, simple grammar, and powerful word-building capabilities.
This Is the New Esperanto: Simplish
A project with the purpose to form an English-based, but neutral-pronounced written language for the European Union.
Ulango
Ulango, also known as Modlango, is a mixture of Esperanto and English. Lessons, vocabulary and grammar are provided.
Universal Language
Interdisciplinary articles on artificial language, communication and culture in language usage, typology, and universality in language with applied linguists in mind.
Volapük
An encyclopedia article on Volapük, including sections on grammar and history.