When giving presentation, I try to avoid exiting my slideshow if possible. I’d rather stay in full screen without having to open other files or webpages. LiveSlides to the rescue! This free software for Mac or Windows runs alongside PowerPoint or Keynote. I can paste a URL into LiveSlides and it adds a placeholder slide to my presentation. When the placeholder is shown in presentation mode, it displays the web content full screen. If a YouTube web link was inserted, the slide will automatical...