Definitely Google via Youtube uses mysql, at least. From 2007: http://ebiquity.umbc.edu/blogger/2007/12/28/how-youtube-scales-mysql-for-its-large-databases/ ht

Definitely Google via Youtube uses mysql, at least. From 2007: http://ebiquity.umbc.edu/blogger/2007/12/28/how-youtube-scales-mysql-for-its-large-databases/ http://ebiquity.umbc.edu/blogger/2007/12/28/how-youtube-scal... Undated job opening: http://www.google.com/intl/ln/jobs/uslocations/mountain-view/engops/opsit/youtube-mysql-database-administrator-mountain-view/index.html http://www.google.com/intl/ln/jobs/uslocations/mountain-view...