» Uniono por la Linguo Internaciona (Ido)    Official site of Ido, the international language. Site in Ido and tens of other languages.    http://www.idolinguo.com/

» Elektronala dicionario de la linguo internaciona Ido    Interactive multilingual dictionary of the international language Ido. In Ido.    http://dicionarii.free.fr/

» Ido    An encyclopedia article on Ido, including sections on grammar, history and international conventions.    http://en.wikipedia.org/wiki/Ido

» Ido, Esperanto Reformita / Ido-Skolo    Elementary, intermediate and advanced level lessons in English to teach the Ido language / Vortaro Ido-Esperanto, Esperanto-Ido da Sro Kuriyama Hitoshi / Vortaro Ido-Angla, Angla-Ido.    http://www.geocities.com/Athens/Sparta/6367/

» Ido, linguo internaciona, universala    Useful links leading to web pages about the international language Ido in many languages.    http://members.tripod.com/~avancigado/

» Ido: The International Language    Collection of information and resources for students, speakers, and anyone interested in the language.    http://www.davidmann.us/ido/

» Idolisto    This is a e-mail list for Ido. It's a really busy list, so it's very useful for people who want to learn Ido. Writing messages to this list in other languages than Ido is strongly discouraged.    http://groups.yahoo.com/group/idolisto/

» The International Language Ido    Contains numerous downloadable plain text resources, including Ido wordlists (dictionaries) for English, German, French, and Italian.    http://members.aol.com/idolinguo/index.html