Well, for one, 280 Slides is free. PowerPoint is far from it. More importantly, its really nice to use software that you don't have to install or download, and

Well, for one, 280 Slides is free. PowerPoint is far from it. More importantly, its really nice to use software that you don't have to install or download, and that gets automatically updated to the newest version. Plus, neither PowerPoint or Keynote lets you search the web for media directly.