Phonetic Picture-Writing Phonetic picture-writing can also be read phonetically. Its ideograms are composed of special letters. Authored by Leonhard Heinzmann.
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.
Constructed Languages An encyclopedia entry describing constructed languages, including sections on auxiliary languages, artistic languages, and logical languages.
Conlangs DE-Cal A class on constructing languages at the University of California Berkeley.
Studoj pri Interlingvistiko / Studien zur Interlinguistik 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.
Conlang Free City This Conlang Wiki is devoted to the topics of ConLangs and ConCultures. This is an online resource and communnity about Conlangs that you can edit.
Bibliography of Planned Languages (Excluding Esperanto) List of books on interlinguistics, Volapük, Ido, Ro, Occidental, Novial, Interlingua, Glosa, modified English and Latin, pasigraphies, number languages, and other planned languages.
