I have mentionned ConceptArt.org here in the past and how it’s a huge community of artists. I have also mentioned that I had a Shawn Barber dvd published by Conceptart. Unfortunately, the shipping for the dvd’s were quite expensive for international customers. Fortunately, that is no longer a problem since the content of the dvd’s and additional educational material is now available for download. It has been for a while but there is new stuff coming out all the time like the new ZhangLy/Manley title.
I bought 7 of them last week (on top of the 2 dvd’s I already had) and it was worth every penny. Check them out!
Conceptart Youtube channel (for trailers and samplers)