EverySlide,在线幻灯片演示投票辅助平台，https://everyslide.com工具帮助教师、演说家、讲师、营销人员提高与听众的互动
该平台的使用方法很简单
EverySliderun polls and ask questions using an audiences devices. Create a presentation in PowerPoint or Keynote, the same way you always did. Upload it to everyslide.com and press present. You will get a unique URL the audience can use to join your slideshow using any device they happen to have.EverySlide
