Add Google Tone to Chrome and you can send a webpage address to another computer that has the extension. Google Tone uses the computers’ microphones and speakers to transfer the URL. In other words, any computer that has speakers, a microphone, the Google Zone extension and is within earshot can transfer this information. Load all of the computers in a classroom with this app and webpage sharing just got a lot easier. Even easier than Share to Classroom. You just might have to ask the students to be quiet for a few moments.