Microsoft is looking to revolutionize the classroom experience with a new service called Office Mix. While its not live yet and requires an invite to sign up, Office Mix a new service that turns PowerPoint presentations into interactive, online lessons that you can share with anyone. First spotted by @h0x0d, Office Mix sounds like an excellent tool for schools, allowing instructors to distribute presentations to all their students via the web. Instructors can check student progress online and see who actually watched the presentation.