I have written and published an article about Coffea its species and varieties. It is about 33 pages long and includes chapters about botanic and botanical history. Most of the work includes (and that´s the mane theme) lists of Coffea its species and varietals with descriptions and additional info.
It can be found on a specially dedicated blog: http://genuscoffea.wordpress.com
It is published in two (at the present moment) languages: English and Estonian (originally written language).
Also You can "Like" the page on FaceBook I created specially for the weblog: http://www.facebook.com/#!/pages/GenusCoffea/198891696797152?sk=wall
Have a good and interesting reading.
ps - Pleas Share that article with as many coffee pros and connoisseurs as possible. The idea of publishing that work is to bring that information to as many people as possible.
pss - Any thoughts, feedback or discussion here will be appreciated!