Review: The Xbox One Versus the PlayStation 4 - The New York Times
Playstation 4 (2013-present) – History of Console Gaming
Original (2013) PS4 | TechRadar
Sony sold 4.2 million PlayStation 4 units in 2013
PlayStation Europe on Twitter: "Have you seen our new #PS4 advert? "Players will become legends" http://t.co/qpZiJvV2uJ" / Twitter
PS4 Review (2013) - IGN
PlayStation 4 - Wikipedia
PlayStation 4 hardware revealed at E3 2013 – PlayStation.Blog
The Evolution of the PlayStation 4 Controller | Visual.ly
Sony PlayStation 4 2013 - A new era of gaming
DUALSHOCK 4 Revealed: Pushing the Boundaries of Play – PlayStation.Blog
Amazon.com: HumanCentric PS4 Mount for PS4 Original (2013 - mid 2016 Model) + 2 Controller Mounts Bundle (Black) | Mount on The Wall or on The Back of The TV | Patent Pending : Video Games
PlayStation 4 hardware review: Off to a mixed start | Ars Technica
PS4 Announcement: Watch PlayStation Meeting 2013 Here – PlayStation.Blog
Evolution of PS4 (2013-2018) - YouTube
PlayStation 4 review: fast, powerful, worth it | Engadget