FAA practical test standards:

FAA regulations: 

Night Flying

FAA handbooks:

SFAR 73 video:

FAA Weather and pilot reports:

Online charts and flight planning tool:

Robinson Helicopter Company website that has POHs, Flight training guides and other useful info:
Some great private helo websites:
Helo related training software:

General training software:

Foreflight and Stratus - electronic flight bag, moving map, WAAS GPS, ADS-B, AHRS:

Helo W&B and performance iOS apps:

Pilot's guide to California airports is an extremely useful reference to get - iOS app available:

Useful accessories:
iPad mini knee board from mygoflight:

Renter's insurance:

AOPA services:

HeliSAS - stability augmentation system:

Vortex Ring State:

CloudAhoy debriefing:


Runway Safety:

AOPA courses and resources:

GPS approaches:


Online Videos:


Ground resonance:

SFAR 73 Awareness training:
Frank Robinson talking about Low G Mast Bumping
Frank Robinson talking about Low RPM Rotor Stall (warning graphic)
Frank Robinson talking about on Energy Management

Energy Management:

Mast Bumping: