YouTube Celebrates With a Top Five by Chris Trayhorn, Publisher of mThink Blue Book, February 23, 2010 YouTube celebrated its fifth birthday on Valentine’s Day. The youtube.com domain name was first registered on 2/15/2005 and the site was bought by Google 20 months later for $1.65 billion. After the jump check out the top five YouTube videos of all time, including a terrorist, a baby and a history lesson. Have you seen them all? Charlie bit my finger – again ! (162,975,197 views) Evolution of Dance (137,662,079 views) Miley Cyrus – 7 Things (111,092,335 views) Hahaha (108,383,930 views) Jeff Dunham – Achmed the Dead Terrorist (107,099,641 views) Filed under: Revenue Tagged under: Industry Trends, Video About the Author Chris Trayhorn, Publisher of mThink Blue Book Chris Trayhorn is the Chairman of the Performance Marketing Industry Blue Ribbon Panel and the CEO of mThink.com, a leading online and content marketing agency. He has founded four successful marketing companies in London and San Francisco in the last 15 years, and is currently the founder and publisher of Revenue+Performance magazine, the magazine of the performance marketing industry since 2002.