YouTube

               

YouTube was founded in February 2005 and has become the go-to site for video on the web. One hour of video is uploaded to YouTube every second.

The site that gave the world the Rick Roll has grown beyond homemade videos to include network and professional content, particularly music videos. Advertisers have also done well on YouTube, with many brands premiering SuperBowl ads on the service before they air on television.

Google bought YouTube in 2006 and underwent a significant redesign in 2011. The revamped YouTube emphasized "channels" for content and rolled out a bevy of new features.

Check out some of our favorite viral videos here.

For more on how to use YouTube, check out our guides below:

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