Yes, GR, Fenzi is online classes. I also can really recommend them.
I also really, really like a book called Click Your Way to Rally Obedience, by Pamela Dennison. You can order it on Amazon and you'll have it before your next class
It has a lot of diagrams and pictures and really explains, in great detail, all the maneuvers. It really helped me visualize everything, and I think the training advice is fantastic.