JustArtist.com lists great resources covering many topics related to artist information, computer graphics, craft, egg tempera, landscapes, museums, paint, oils painting, posters & prints, watercolors.
Watercolor Society of Oregon
A non-profit, educational association of selected watermedia artists. Juried exhibits are held at conventions twice a year. Includes Watermark, a quarterly newsletter, and links to members' sites. http://www.watercolorsocietyoforegon.com/
Tax-exempt, non-profit, co-operative organization open to all artists and art enthusiasts. Membership includes artists from Northern New Jersey and lower New York State. Membership, shows, contest, and newsletter.