Language links and reference data.

Summaries of lesser known modular languages written by Paul Bartlett. Afrihili, Eurolengo, Frater, Oz and Tutonish.

A regularly updated directory of over 1,100 invented languages and neographies.

List of conlangs in alphabetical order with indication of the basis for the language.

Categorized links to information about constructed languages.

A description of constructed languages with categories and examples.

Huge resource material for natural as well as constructed languages.

Links to planned languages compiled by the Esperantist Donald J. Harlow.

Notes and resource on both international auxiliary and constructed languages, a large collection of links.

A directory of invented writing systems for artificial languages.