Microsoft Office OneNote, usually referred to as Microsoft OneNote, is a tool for notetaking, information gathering, and multi-user collaboration by Microsoft. While many earlier systems relied on linear text flow (simple lists), OneNote visualizes notes as a two dimensional page. OneNote also adds modern features such as drawings, pictures, multimedia audio, video, and ink as well as multi-user sharing of notes. It was a separate program in 2003 and became a core program in most retail editions of 2007 and became fully core in 2010.