Here are some links to sites that I find useful:
Art communities:
www.tegnebordet.dk - A danish site for artists.
www.polykarbonbbs.com - International drawing forum.
www.conceptart.org - A high-end drawing forum.
Artists:
www.Hyung-taekim.org - Really good with painter and makes incredible costume designs.
www.Ryanchurch.com - A incredibly talented concept artist who among others works for Industrial Light & Magic.
