PlayStation - console - was created in 1994.
PlayStation Underground was created in 1997.
PlayStation World was created in 2000.
Dengeki PlayStation was created in 1994.
PlayStation Store was created in 2006-11.
Sony created the playstation
PlayStation Magazine Ufficiale was created in 2002.
PlayStation Official Magazine was created in 2006.
PlayStation Portable launch was created in 2004.
PlayStation Suite was created on 2011-10-20.
PlayStation Vita was created on 2011-12-17.
PlayStation Home was created on 2008-12-11.