Constructed Languages
- Online community for all those with an interest in conlangs and their invention. With extensive information on scripts and writing systems.
- http://community.livejournal.com/conlangs/

Lang Game: by Decker
- Language creation game presided and run by Decker. Five phases. Details to join.
- http://decker.ifrance.com/langg$.htm

Semantic Space Theory
- Research in coordinate semantic space (notion space) theory and its applications.
- http://www.taktaev.com/english/cnp

LanGServices: Language Creation
- An online textbook for creating languages.
- http://www.langservices.net/language_creation.html

JBR Homepage
- Articles and rants related to Language Creation, many with a humorous twist.
- http://www.xibalba.demon.co.uk/jbr/

Essays on Artificial Language Design
- A collection of writings on language design by Rick Morneau.
- http://www.eskimo.com/~ram/essays.html

Language Construction Kit
- In-depth introduction to language creation, by Mark Rosenfelder.
- http://zompist.com/kit.html

Conlang Archives
- Large searchable archive of the conlang mailing list.
- http://listserv.brown.edu/archives/conlang.html

Conversational Maxims and Principles of Language Planning
- Scholarly article on brevity, ambiguity and redundancy in planned languages, by Hartmut Traunmüller.
- http://www.ling.su.se/staff/hartmut/griceil.htm

Artificial Languages
- An essay on the nature of artificial languages, by Robert Isenberg.
- http://www.uib.no/people/hnohf/artlang.htm

How to Build a Language
- A general overview of many constructed language. Introduction with personal analysis and conclusions.
- http://donh.best.vwh.net/Esperanto/EBook/chap03.html

Conlang Yahoo
- The signup page for the Yahoo.com Constructed Language mailing list.
- http://groups.yahoo.com/group/conlang/

LangMaker.com
- Invent your own language resources with FAQ, links to other languages and book list.
- http://www.langmaker.com/