YouTube is a video sharing website on which users can upload and share videos with each other. Three former employees of PayPal created YouTube in February 2005. In November 2006, Google Inc bought YouTube for $1.65 billion.The company is based in San Bruno, California, and uses Adobe Flash Video to display a wide range of user-generated video content which include 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 including CBS, the BBC, UMG and other organizations offer some of their material via the site, as part of the YouTube "partnership" program. Accounts of registered users are called "channels".

Unregistered users can watch the videos, while registered users are permitted to upload an unlimited number of videos. Videos that are considered to contain potentially offensive content are available only to registered users over the age of 18. The uploading of videos containing defamation, pornography, copyright violations, and material encouraging criminal conduct is prohibited by YouTube's terms of service.

One of the Most Viewed Video on Youtube.com

This video is called "Evolution of Dance". It is on ethe most viewed videos of all time on youtube. This video still continues to get comment and has a view rate of about 127,000,000 to date (Oct 1,2009).