YouTube is a free video sharing website that makes it easy to watch online videos. You can even create and upload your own videos to share with others. Originally created in 2005, YouTube is now one of the most popular sites on the Web, with visitors watching around 6 billion hours of video every month.
If you've ever watched a video online, there's a good chance it was a YouTube video. For example, almost all of the video tutorials on our website are actually YouTube videos! The video below is also a YouTube video—just click it to start watching: