Instead of "artificial language" in the case of Esperanto is better toto use the term "planned language" to talk about Esperanto, because It is buidt by natural elements from existing languages, and spoken by living human beings not by machines or computer. :)

Another social networking site for Esperantists:http://verduloj.com/

Fabián, I recommend you read this article.

ARTIFICIAL AND NATURAL LANGUAGES

http://www.encyclopedia.com/article-1G2-3446800124/artificial-and-natural-languages.html