Fictional

Grammar, phonology, dictionary, and glossary of linguistic terms.

Constructed language derived in part from Japanese in Morioka Hiroyuki's book Seikai no Monshou.

Nonprofit organization offers language tutorials, related merchandise, mailing list and membership information.

Includes documentation of all canon, careful analyses, links, and reference materials.

A two-way translator and morphological analyzer, available online or as a download.

Includes dictionary and analysis program, translations of English works, links, and other resources.

Bachelor's thesis in sociology by Yens Wahlgren. Marc Okrand, the creator of Klingon, and 18 advanced Klingonists are interviewed.

A short article by Glen Proechel, first published in "Esperanto U.S.A." in 1994, comparing the Klingon language to Esperanto.

Summary of the Quenya grammar, includes examples.

A brief description of the Tengwar script.

Essays on the tongues of Arda, Tolkien's youthful invented languages, glossaries, Elvish poems by other authors, linguistic discussions, and links to further resources.