January 2014 NPD: PlayStation 4 outsells Xbox One by a nearly 2-to-1 margin | VentureBeat
Xbox One vs PlayStation 4: Year One | Eurogamer.net
December 2014 & January 2015 PS Plus Free Games on PS4 Revealed - theGeek.games
20th anniversary PS4 nabs $20K on eBay - CNET
PlayStation on Twitter: "PS4 20th Anniversary Edition! Watch the #PSExperience keynote Saturday for more details: http://t.co/8IK6ojT2OL http://t.co/NMEJ6jBhvf" / Twitter
PlayStation 4 | PlayStation Wiki | Fandom
Todos los juegos de PS4 en 2014 | Hobby Consolas
PlayStation 4 - Wikipedia
NEW 2014 Sony Playstation 4 (PS4) Infamous Bundle - EPIC Unboxing (4K UltraHD) - YouTube