Sometimes abbreviated as YT, YouTube is a popular video sharing service that allows anyone to post any appropriate video or vlog; founded on February 15, 2005 by Steve Chen, Chad Hurley, and Jawed Karim.
Once uploaded, other YouTube users can leave rate or leave comments about the video, as well as post a YouTube video response. Videos transferred to YouTube are converted to Adobe Flash files so all users can view the videos without having to worry about getting extra software or plug-ins. Below is an example of a YouTube video created by Computer Hope called "The YouTube Cast," which features over 500 still shots from YouTube videos.
