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OneNote's Windows 8 app is also free
Of the four main Office apps, only OneNote currently has a native app that runs on Windows 8 or Windows RT. This app is especially useful for serving as the target for the Share charm. Select some text from a web page, click the Share charm, and choose OneNote as the Share target. Your selection is pasted into its own new page (or the current page, if you prefer), along with a link to the page.