Oil Painters of America
The preeminent national organisation, committed to the preservation of representational oil painting.

The Art Renewal Center
A huge site of many types of resources for the representional artist, art student, or art collector.  Contains the largest "online Museum" on the Internet, featuring high-quality, often very high-resolution images of the world's great paintings by both contemporary (ie., living) and past Masters. 

Also an excellent collection of essays on the subject, as well as a list of approved art schools and ateliers.

The Helpful Housedogs of Whitebird Studio
Several friends and clients have suggested that I share photos of my other passion--my dogs. Follow the link to see pictures of our current dog-buddies, whose hair you may occasionally find trapped in the oil paint around here, and for whose convenience and comfort our household is maintained!