International Odontoglossum Alliance
 

Popularity of Odontoglossums seems to be growing and the International Odontoglossum Alliance promotes these beautiful plants, essentially under their historical name of Odontoglossum rather than lumping with Oncidiums.
There is a website at Home which is building a valuable resource about the genus and allied. Although the Alliance has been going since the mid-1980's their regular newsletters are now being archived gradually to the site. The site also tells us how to register to know when editions of a new Journal get published - which will have both English and Spanish editions.
Take a look.