When I was in college and using OneNote, I carried My Notebook around on a flash drive and updated it manually on my laptop and desktop. Which worked fine unless you accidentally overwrote the wrong version and lost all of your notes for the day…or week. Not that I ever did that, of course.
Anyway, Chris Pratley has a post about how to keep your Notebook on a personal site, or the “hard drive in the sky”.
Of course it’s a little late for me, as I’ve already moved over to Google Notebook, but it might be just the thing for you students or professionals out there.