UE4 Useful Links

Helpful Links for Jamming 
Official Sites 
Getting Started Docs 
Reduce Your Package Size  
Tutorials and Guides 
Blueprint Getting Started Thread 
C++ Getting Started Thread

Community Wiki

Unreal Engine’s Official YouTube Channel
Mathew Wadstein’s YouTube Channel
Peter L Newton’s YouTube Channel
TeslaDev’s YouTube Channel
Luos’ YouTube Channel

Tutorials and Guides 
Tutorials by Tom Looman 
Blueprint Guides by Romero