One note is a great program to take notes. If you have a PC, Ipad or MAC you can add information to your Notepads and synchronized it across devices. Now you can email your notes to email@example.com and they will automatically appear in your notes.
This was the big differentiator between Evernote and OneNote but not anymore. No need to pay for Evernote any more.
Additional Information http://blogs.office.com/2014/03/17/email-your-notes-into-onenote-with-meonenote-com/