OneNote is an essential part of my daily collaboration and information-management routine. I have it configured to auto-launch when I start Windows, and I typically spend my workday using a combination of Outlook for communication channels (from which I routinely send information items to OneNote for further processing and integration), OneNote for collaborative notebooks and information repositories, and browser clients for Web-based content (which I also routinely send to OneNote for further processing).
OneNote is not a complete solution for many people, howeverespecially for those who use Mac PCs (the OneNote Web App works on the Mac, but isn't a full substitute for OneNote 2010), iPads (OneNote Mobile for iPhone can be used on the iPad, but isn't optimized for the platform), and/or Android devices (usually smartphones, but with growing use of Android tablets as well). Since Microsoft does not currently offer complete OneNote clients for those platforms, and since the OneNote Web App client does not work on all iOS and Android devices, Evernote is often used as a OneNote alternative. That's the topic of the next article in this series, "Evernote and Microsoft OneNote: Comparing Two Noteworthy Tools/Services."