A few (several?) weeks ago I posted a blog called “5 Things to consider while uploading your video”. And I cannot believe myself that I forgot to talk about Custom Thumbnails. D’OH! I think it’s okay, because “custom thumbnails” really should have its own blog anyway. So there. A thumbnail is the image you see a video as when you are scrolling on your screen. If you’ve spent ANY time on the internet interacting with videos, you might have noticed that sometimes, this cover image  NEVER even appears in the video. Back in the day, this confused me. I’d be waiting for the introduction picture to flash because back in…