Neo Patwa
- A new international language, designed to be a pidgin to be shared by people around the world.
- http://patwa.pbwiki.com/

Lingua Franca Nova wiki
- Lingua Franca Nova wiki. LFN is a creole-like constructed Roman language.
- http://lfn.esef.net/index.php/Paje_Prima

Aprenser Románico
- The complete and utter guide to Románico.
- http://www.aprensar-romanico.com/

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.
- http://www.nutter.net/sasxsek/

Ro Language Profile
- Summary of the Ro Language, including history, glossary, grammar, bibliography and sample text.
- http://www.langmaker.com/outpost/ro.htm

Mondlango
- Mondlango is an international auxiliary language designed for neutrality and ease of learning.
- http://www.mondlango.com/

BJA-LISTO
- Introduction to a mailing list about social interlinguistics.
- http://esperantic.org/ced/bja-angla.htm

LangX: Towards a Universal Language
- Description of LangX, including word lists.
- http://www.appledene.karoo.net/

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.
- http://www.blahedo.org/novial/novial98.html

Lingua Franca Nova
- Created by Dr. C. George Boeree to be a particularly simple, consistent, and easy to learn language for international communications.
- http://www.lingua-franca-nova.net/

Europanto Language
- A brief encyclopedia article on the international auxilliary jest language.
- http://en.wikipedia.org/wiki/Europanto

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.
- http://purwin.de/simplish.cfm

Aiola: Linking the Global Community Through Language
- 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.
- http://www.aiola.org

Novial Language
- An encyclopedia article on Novial, including comparison with Esperanto and Ido.
- http://en.wikipedia.org/wiki/Novial_language

Basic English
- An encyclopedia article on Basic English, including sections on grammar, criticisms, and word lists.
- http://en.wikipedia.org/wiki/Basic_English

Romanid
- Documentation site of Romanid, an interlatinid naturalistic constructed language.
- http://romanid.fw.hu/

Lango
- Grammar, dictionary, texts.
- http://www.langosite.narod.ru

MediaGlyphs Project
- A written language based on multimedia ideograms.
- http://www.mediaglyphs.org

A Universal Interlanguage: Some Basic Considerations
- 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]
- http://www.ling.su.se/staff/hartmut/UIL.pdf

Auxlangs
- Opinions and information on Esperanto, Ido, Folkspraak, Glosa and Volapük by William W. Patterson.
- http://www.kafejo.com/lingvoj/auxlangs/

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.
- http://www.vido.net/atlango

International Auxiliary Language
- Document presented by the Transnational Radical Party and Esperanto International Federation
- http://www.radicalparty.org/esperanto/ins_un.htm

Earth Language
- Known also as EL is a rational multi-method language designed by its creator Yoshiko McFarland.
- http://www.earthlanguage.org/english/ehome.htm

Slovio
- Constructed language based on Slavic languages.
- http://www.slovio.com/

DiLingo
- Artificial language created by Sumus Cacoonus.
- http://www.dilingo.com/