Xbox and PlayStation: Microsoft and Sony's history in video games

Xbox vs PlayStation: the Microsoft-Sony gaming rivalry plays out again

Strategy showdown in gaming: Nintendo vs. Sony vs. Microsoft

One year after launch, Sony's PS4 is crushing Microsoft's Xbox One – GeekWire

The Best-Selling Video Game Consoles of All Time

A sometimes true, sometimes false history of the Xbox One and PlayStation 4 - Polygon

Pushing Buttons: After a decade of PlayStation dominance, the next year of games belongs to Xbox, Xbox

Strong revenue numbers for Sony and Microsoft gaming divisions - Gaming And Media

How Xbox changed the games industry

History of Video Games for Kids: Facts & Timeline

Strategy showdown in gaming: Nintendo vs. Sony vs. Microsoft

Xbox and PlayStation: How Sony and Microsoft changed the way we play video games

Why Sony says it can't trust Microsoft's Call of Duty offer? One word: Bethesda

The FTC's case against Microsoft could turn into Xbox vs. PlayStation - The Verge

The history of PlayStation was almost very different - Polygon

Xbox vs PlayStation: What's the latest in Microsoft's takeover of Activision Blizzard