Try concentrating on that with an ever changing image in the corner annoying you for attention every 3 seconds. In a word processor, it’s a safe bet you’re likely writing.
This, of course, distracts from whatever you’re trying to do. Are we going to get animated ads next? Will random music start playing? The animation is limited to slides that change too often right now, but it doesn’t fill me with confidence for the company’s ad quality control. Thing is, the MS ads are bad enough - they won’t stop moving. Right now it appears to only run Microsoft ads, though that will change soon, I'm sure.
This sidebar is persistent because that’s where the ad unit is.