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.
Simply to produce portraits of areas of landscape, is not really good enough, my own response is to try and convey on the flat surface, an emotional reaction to an environmental experience.
Omen8 Productions chronicles Benjamin Stabler's artwork over the last ten years. He uses ppray paint, ink, and enamels to explore the fusion of the tecgnological aestetic and human craftsmanship.