I am looking for some good websites that educate folks on B&W Photography (from equipment to picture-taking to darkroom work). APUG is a great site in the forum-style, but what are some of the best sites layed out with directions, diagrams, etc. on the art of black and white photography?

When I do a search through google, I always get websites that want to sell me something, instead of sites that simply exist to inform and educate. Does anyone know the best search engine that can weed out all these sites that want to sell you crap?

Love to hear your thoughts on these two matters,