Microsoft's OneNote has its fans, but when it comes to note managers, Evernote tends to get all the love.
If you're new to OneNote and not sure where to start, start here.
OneNote in a noteshell
A description of OneNote's core function can be found right in its name: One place to store, manage, and share your Notes and other information.
In other words, think of it as a cloud-based repository of raw text, documents, checklists, photos, audio recordings, Web pages, and the like. And that repository stays in sync with all your PCs and mobile devices: OneNote apps and software are available for Windows, Mac, Android, iOS, and Windows Phone, and you can also access via any Web browser.