At Microsoft there are currently 3 main divisions and one of those is headed by Jeff Raikes the president of the Business Division. Jeff is a big OneNote fan and uses it all of the time. Just this week a couple articles were published explaining how Jeff uses OneNote, please check them out:
Office Hours: How OneNote made friends in a corner office
OneNote Demo: Jeff Raikes — An Executive’s Best Practices
Thanks to Michael C. Oldenburg for writing this and getting it up on Office Online and interviewing Jeff.