The problem with YouTube's keyboard shortcuts is that they only work after you've clicked on the video player itself. Still, the numerous keyboard shortcuts are still useful; at the very least they limit the amount of mouse pointing you'll have to do. Check out a comprehensive list of YouTube keyboard shortcuts here. For quick reference: Spacebar plays or pauses the video, left/right is rewind or forward, and F activates full screen mode, and Escape disables it. Up/down controls the volume, M toggles mute, and 0 to 9 quickly skips to every tenth of the video.
Switch the YouTube player to full-screen, and the online video site auomatically tries loading a higher-quality version of the movie if it's available. A useful feature that's unfortunately not workable on computers with slow internet connections. Simply turn off this automatic adjustment by clicking on the gear button on the bottom of the player, and making sure "Never play high quality video" is checked.
Want to watch YouTube videos from across the room? If you've got a large enough display—or have connected your PC to a large HDTV—just go to youtube.com/leanback. You'll end up on a stripped-down yet very functional version of the video site, allowing complete control through the keyboard. Leanback takes up the entire window, so there's no need to switch to full screen.
It's no secret that millions visit YouTube everyday to listen to their favorite artists, which is why a repeat button has been a long-requested feature. But since the people behind the online video site have yet to implement it, if there are plans at all to do so, you'll just have to visit youtuberepeat.com to keep your favorites playing over and over again.
Speaking of music, you can quickly access music videos by visiting youtube.com/disco. Simply type in the artist or song you're looking for, and YouTube will generate a playlist that theoretically should appeal to your musical taste. Quick links provide access to a "Top 100" playlist, and the discography of top viewed artists.
Have you ever realized that two videos go well together, and wanted to watch them side-by-side, or at least view one video while listening to the music of the other? YouTube Doubler not only makes the dream a possibility, it allows one or both videos to be delayed, for syncing purposes. Feel free to play around with this rough example: youtubedoubler.com/4b6P. The only (and perhaps obvious) problem? The online service requires a fast connection to work properly.
YouTube supports a wide variety of video formats, but it's still worth paying attention when compiling the final video you want to upload to the site. Take the time to read through the service's own tips on encoding videos, to ensure the quality of your uploads. At the very least, it will save the trouble of deleting a stuttering video from your account, rerendering the source video, and waiting for the new upload to complete.
It's amazing how YouTube keeps years of video at your fingertips at all times, but what if you wanted to save a specific video for posterity? There are numerous applications, especially for Windows PCs, that automate downloading YouTube videos and converting them into a format watchable on your computer. Our personal favorite: Freemake Video Converter.