If other people have been working on this notebook, you can see who did what by clicking the Show Authors command.

In Reading view, you can view different sections and pages of the notebook, and expand and collapse sections in the navigation pane. If you want to see how your changes look in the notebook, switch to Reading view. If you make changes that you don't want to keep, use the Undo command or press CTRL+Z (Windows) or ⌘+Z (Mac). OneNote Web App saves your notebook automatically while you work on it. Clip art comes from the collection of images available from. You can also add tables, pictures, clip art, and hyperlinks. You can format text by applying styles and all the text formatting choices that you see on the ribbon. You can type and format text as usual, and you can use copy/paste and undo/redo commands. When you open your notebook in SharePoint, OneNote Web App opens the notebook in the browser. Now, your notebook is available to view and edit in the browser, or re-open in OneNote. On the File tab, click Share, and then under Share On click Network. In OneNote 2010 you can start using OneNote Web App by saving your notebook to your SharePoint library. What if you want to collaborate with someone who has a different version of OneNote than you do? Wouldn't it be great if you could work on it together, right there on the website? OneNote Web App makes this scenario possible. You want to post it on a website so that other people can read it, maybe even contribute to it.

You create a notebook in Microsoft OneNote 2010. Microsoft OneNote Web App extends your Microsoft OneNote experience to the web browser, where you can work with notebooks directly on the website where the notebook is stored.

One note web app