Region 418 AYSO Links:
Referee Scheduler on InLeague
Ref Training
How to Register for a Course
AYSO Region 418 Local Policies
Region 418 Referee Mentor Request Form

Laws of the Game (LOTG):
FIFA Laws of the Game (download)
Outline of changes to the LOTG-file page 84, Law book page 167
Details of changes-file page 87, Law book page 171
Practical Guide for Officials-file page 105, Law book page 209
Other Advice (including offside)-file page 116, Law book page 231
Mobile Version

National AYSO Links:
AYSO National Referee Resources 
The AYSO Whistle Blog

Third Party Sites and Videos:
Ask the Ref
Refs Need Love Too
Build-out Line Review