Directories
Artificial Language Lab, Bartlett's Unfamiliar Model Language, Conlang Profiles at LangMaker.com, Conlang Yellow Pages by J. Shinavi, Constructed Human Languages, Constructed Languages, Language Guides, Planlingvoj, Richard Kennaway's Constructed Languages List, The ConScript Directory
Fictional
Klingon, Romulan, Talossan, Tolkienian Languages, Vulcan, A Review of the Toki?Pona Planned Language, Adelic, Amman Iar, Argtxep: Concept of the Citadel, Babyish, Baronh, Beginning Primer for Litaja, Constructed Languages, Danovën, Elet Anta
International Auxiliary
Esperanto, Glosa, Ido, Interlingua, Occidental, A Universal Interlanguage: Some Basic Consideratio, Aiola: Linking the Global Community Through Langua, Ameryske Tunga: Amerykan Language, Atlango, Auxlangs, Basic English, Bruce R. Gilson's Language Page, DiLingo, Earth Language, Europanto
Language Creation
Artificial Languages, Artlangs.com - The ArtLangs Community, Conlang Archives, Conlang Yahoo, Constructed Languages, Conversational Maxims and Principles of Language P, Essays on Artificial Language Design, How to Build a Language, How To Create A Language, JBR Homepage
Logical
Lojban, A Grammar of the Ithkuil Language, Ceqli, Ceqli, Danovën / Arovën Language Pages, Links to Logical Constructed Languages, Liva, Loglan, Minyeva: A Systematic Constructed Language, The Syntax of CycL, Voksigid
Play
Pig Latin, Ubbi Dubbi, A Bibliography of References Pertaining to Prokem, Argot and Verlan, Cockney Rhyming Slang, Geringoso, Interactive Programming In Java: A Community of In, Intra-Representational Correspondence and the Real, Language Game, Linguist List: Double-Dutch and Youthese / Pig Lat, Linguist List: Language Games, Linguist List: Pig Latin
Reformed and Modified English
Basic English, Americai Speak Page, Anguish Languish by Howard L. Chace, Dan Scorpio, David-Wynn: Miller, E Prime - English without the verb to be, Glimpses of Globish (Global English), LangMaker.com, The Archaic English Project
Conlangs DE-Cal
A class on constructing languages at the University of California Berkeley.
Constructed Languages
Links to many conlang sites as well as the author's own conlang.
Constructed Languages
An encyclopedia entry describing constructed languages, including sections on auxiliary languages, artistic languages, and logical languages.
Phonetic Picture-Writing
Phonetic picture-writing can also be read phonetically. Its ideograms are composed of special letters. Authored by Leonhard Heinzmann.
Studoj pri Interlingvistiko / Studien zur Interlin
Journal article by Wim Jansen that reviews a book on language planning and language policy by Sabine Fiedler and Liu Haitao. The book is on the theoretical and applicational aspects of interlinguistics, esperantology, terminology and lexicography.
The German Interlinguistics Society "Gesellsc
Review article by Seán Ó Riain. Published in "Language Problems and Language Planning" in 2003.
Universal Language Dictionary Project
An attempt to create a list of concepts, described in English, along with words to express those concepts in several natural and artificial languages.