PlayStation NOW, available to select Samsung Smart TVs (trophies, online multiplayer, and cloud saves support) : r/PS4
PC/PS4/PS3 CrossPlay Now Available In DC Universe Online; Here's How It Works
LittleBigPlanet 3 servers come back online for PS4, but PS3 and PS Vita game servers to be shut down | TheSixthAxis
PS4 backwards compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
PS4 Game That Allows You to Play with PS3 Users Online - YouTube
How to Play PS3 Games on the PS4 (with Pictures) - wikiHow
PSA: PlayStation Plus Will Be Required for PS4 in Order to Play Online
PlayStation 3 - Wikipedia
Sony - PSN Live Subscription Card 12 Month Membership for PlayStation 3/ PlayStation 4/PlayStation Vita - Walmart.com
Sony has made it nearly impossible to buy PS3 games online | Tom's Guide
How to Jailbreak a PS3 (with Pictures) - wikiHow
30 Best Multiplayer Co-Op PS3 Games (Local & Online) – FandomSpot
Can you play PS3 games on PS4? PlayStation 4 backwards compatibility explained
Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon
Do PS4 Controllers Work on PS3? How to Connect a PS4 Controller to PS3
PS4 backwards compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
Why can't I play Demon's Souls on Ps4 when it's a ps3 greatest hits? Aren't all the greatest hits playable on ps plus? And why is there a remake for the PS5