You can easily get lost in youtube selection of videos. Found myself staring at the screen for hours before I noticed! Love the cats videos(duh!) and especially DYI. Man, I learned to do things I would never learned if it wasn’t for this precious gem!The only Con I have found for YouTube is the organizations of playlists, it is non-existent.
Other than that we all know that YouTube is a force in the video market and the large majority of the content is absolutely free. A must have for our generation.