Quentin D'Souza has put together a presenation called RSS Ideas For Educators. He's giving the presentation twice; at the Leading Learning 2006 Conference in February and again at the 2006 ECOO Conference (Educational Computing Organization of Ontario) in May.
He used a wiki to draft the document and has now copied the whole thing into a pdf file that you can download (RSS Ideas for Educators 1.1). It's an incredible compilation of concrette applications of RSS technology in education. I was flattered that he included some of my work in the links he mentions.