What is "Viral Video"?

Viral video is video clip that becomes popular through Internet such as email and blogs, or other websites which are shared by media. There are a variety of contents including funny commercial, sports, movies, news, music, animals, politics and more. Now, the popular web site for viral video is YouTube. Because of viral video sites, there are some impacts on society. In the case of YouTube, for example, “internet celebrities” appear from some videos. In addition, viral video becomes a good way to promote bands and music. Viral video are humorous in many cases, and many of them are produced by amateurs. Since there are devices that enable people to edit and publish video cheaply, viral video spread widely through amateurs. Of course, many companies use viral video for advertising their products.

I found interesting video from YouTube.