Most of you have heard me wax rhapsodic about James Gurney's amazing, daily art blog. An ongoing resource of art theory, art history and life as an illustrator.
He recently posted about another very interesting art blog, especially for those more prone to fine art and landscapes called Art and Influence. Beautifully put together, and with loads of info both procedural and historical (some culled from the blogger's site: Outdoor Painting).
At any rate, it's worth checking out and having bookmarked.