Danny Ayers has the start of a great RDF 101 titled RDF, Bottom Up, with promises of more to come.
I’ve been working on something similarly named, but quite different in tone for some time now. Just so’s you know, when I every finally get around to putting this online, I didn’t steal the name from Danny. But then, by the time I finally get around to publishing it, it will probably be the next decade and you’ll have forgotten.