Sony Starts PS4 Fortnite Cross-Play Beta - Game Informer

Sony enabling Fortnite cross-play for PS4 against Xbox and Switch - The Verge

Microsoft reveals Sony is blocking Fortnite PS4 vs. Xbox One cross-play - The Verge

Fortnite: How to Play Split-Screen

Fortnite gets PS4-Xbox One crossplay due to configuration issue

Players report cross play between Xbox One and PS4 in Fortnite

How to Play Split Screen in Fortnite on PS4 and Xbox One – GameSkinny

Load into the Lobby in Fortnite - Game Mode Select Screen Removed

Do You Need Xbox Live/PlayStation Plus to Play Fortnite - MiniTool Partition Wizard

You can now play against Fortnite players on PS4 and Xbox at the same time

Xbox's Phil Spencer comments on cross-play support after Sony blocks PS4 Fortnite accounts from logging in on Nintendo Switch - MSPoweruser