PresentationTube is a non-profit that has provided a complimentary service to instructors for many years. That service is the capability to tape video presentations based on PowerPoint pdfs and files. Just recently, PresentationTube released a Chrome extension that lets you develop video lessons in your web internet browser..

PresentationTubes Chrome extension will let you record while discussing your PowerPoint slides or a PDF. You can tape-record with your webcam switched on or you can choose to just tape-record your voice talking over your slides or PDF. While youre tape-recording you can make use of the screen, add text notes to the screen, and emphasize text on the screen..
When you have actually finished tape-recording a presentation with PresentationTubes Chrome extension you can upload it directly to the PresentationTube site where you can then release it openly or keep it unlisted. Just Like Google Docs, if you make your PresentationTube unlisted then only people who have the direct link to it can see it..
Applications for Education.
PresentationTubes Chrome extension might be a good one for anyone who is looking for a new, much easier way to create video lessons based on their existing slides. In the meantime you can constantly download your Google Slides as PPT or PDF to use with PresentationTube.