YouTube is a video-sharing
Video hosting service
A video hosting service allows individuals to upload video clips to an Internet website. The video host will then store the video on its server, and show the individual different types of code to allow others to view this video...

 website, created by three former PayPal
PayPal is an American-based global e-commerce business allowing payments and money transfers to be made through the Internet. Online money transfers serve as electronic alternatives to paying with traditional paper methods, such as checks and money orders....

 employees in February 2005, on which users can upload, view and share videos.

The company is based in San Bruno, California
San Bruno, California
San Bruno is a city in San Mateo County, California, United States. The population was 41,114 at the 2010 census.The city is adjacent to San Francisco International Airport and Golden Gate National Cemetery.-Geography:San Bruno is located at...

, and uses Adobe Flash Video and HTML5 technology to display a wide variety of user-generated
User-generated content
User generated content covers a range of media content available in a range of modern communications technologies. It entered mainstream usage during 2005 having arisen in web publishing and new media content production circles...

 video content, including movie clips
Video clip
Video clips are short clips of video, usually part of a longer recording. The term is also more loosely used to mean any short video less than the length of a traditional television program.- On the Internet :...

, TV clips, and music videos, as well as amateur content such as video blogging and short original videos.