Here's a short, lovely little video about Brian Stewart, a plein-air painter, that I came across some time ago.
"I'm trying to grab the viewer by the lapel and shake him and say, look at all this great stuff we're surrounded with!"
His paintings are beautiful and intriguing; he has a real mastery of color and light that lends a magical quality to the images. He also seems to have a calm, friendly demeanor and a real love of life that I appreciate. I definitely would love to learn plein-air painting someday - I love to be outside, and I'm constantly overcome by how beautiful the world is.