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YouTube is a popular free video sharing website which lets users upload, view, and share video clips. Videos can be rated; the average rating and the number of times a video has been watched are both published.

Founded in February 2005 by three former employees of PayPal, the San Bruno-based service utilizes Adobe Flash technology to display video. The wide variety of site content includes movie and TV clips and music videos, as well as amateur content such as videoblogging and short original videos.

On October 9, 2006, it was announced that the company would be purchased by Google for US$1.65 billion in stock. The deal to acquire YouTube closed on November 13. It is Google's biggest purchase to date.

Getting Started on YouTube:

Sign up for a free account while you're there. You're going to need it to put these strategies into action. It's pretty easy to use the site. Once you're logged in, there's a tab to Upload your videos, and it takes you through the process in a few easy steps. There's also a search box at the top righthand corner of the page for you to perform keyword searches on YouTube.

Using the Videos present on the YouTube.

On YouTube:
Users may submit videos in several common-file formats (such as .mpeg and .avi). YouTube automatically converts them to Flash Video (with extension .flv) and makes them available for online viewing.

Outside YouTube:
Each video is accompanied by the full HTML markup for linking to it and/or embedding it within another page. These simple cut-and-paste options are popular particularly with users of social/networking sites.

Downloading videos:
YouTube itself does not make it easy to download and save videos for offline viewing or editing, but several third-party applications, browser extensions (e.g. the UnPlug or VideoDownloader Firefox extensions or Free YouTube Converter) and web sites exist for that purpose.

Viewing deleted videos:
YouTube videos which are flagged as deleted are not necessarily deleted physically. It is possible to recover and download these videos by using web applications such as the Deleted YouTube Video Viewer.

Index sites:
Websites are available that offer an index service and arrange the content on YouTube by relativity, i.e. links arranged by order of seasons and episodes of a certain show. Examples include TVLinks, NetworkOne Australia, and WikiRemote.

Reference used to creating this article :

http://en.wikipedia.org/wiki/Youtube

http://www.clickadrevenue.com/youtube-introduction.html