YouTube is a video shearing website on which users can upload, share, and view videos.
YouTube uses Adobe Flash Video technology to display a wide variety of user-generated video content, including movie clips, TV clips, and music videos, as well as amateur content such as video blogging and short original videos. Most of the content on YouTube has been uploaded by individuals, although media corporations including CBS, BBC, VEVO and other organizations offer some of their material via the site, as part of the YouTube partnership program
Unregistered users can watch the videos, while registered users are permitted to upload an unlimited number of videos.