Microsoft OneNote allows users to gather notes, drawings, screenshots, and audio comments and share them with other users over the Internet. It can sync notes with SharePoint for collaboration and sharing. OneNote is useful for note-taking, acting as a whiteboard, capturing images and audio, and creating drafts. It has mobility options for syncing to mobile devices. While Evernote is good for multi-device access, OneNote has more features for Windows users and can sync with SharePoint. Key OneNote features include sections, notebooks, screenshots, OCR, tags, and pages. Sharing notebooks through SharePoint allows for searching, collaboration, and backup of OneNote files.