This is a biology teacher's web page with TONS of power points etc. but even if you don't teach biology you will enjoy the "how to fail biology page" and the croking frogs!
I wonder if this idea of 60 second lectures could take hold in an English or Social Studies class, for example. Watch Charles Bernstein's "What Makes a Poem" clip. Clever. Would this be a good hook with your students?
Now offered free to educators, this site has a TON of resources, curriculum enhancing content, activities, and lots more. Watch the demo first to get an idea of what's in the site.