PUBLISHED: April 22, 2010 at 1:00 a.m. | UPDATED: August 23, 2021 at 2:55 a.m. On Friday, YouTube celebrates the fifth anniversary of its first video posting, a modest tourism clip that would launch an Internet revolution. In that almost shockingly short time, the video site has become a verb, a logo used to help sell Casio cameras and the dominant player in its field several times over. It is alm
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