Online UK model shops

Al's Hobbies 
CSM
Elite Models
Fast Lad
Galaxy Models
Heliguy
Helizone
Hobbyparts
Midland Helicopters
Robot Birds
Model World
Motors & Rotors
Ripmax
Sussex Model Centre
Weston UK

Associations

British Model Flying Association
IRCHA

International Online RC Shops

RCmushroom
Hobby King
Flying Hobby
Dimension Engineering
Xenon Project's RC Helicopters

Reference sites

RunRyder 
Helifever
Model Helicopter Manuals
RC Universe Forum
RC Helicopter Tips
Rotorworld Magazine
Scale RC Helis

UK Flying Schools

Flyin' Fish

Bearing Suppliers

Moore International

Manufacturers

Airtronics
Align
Century Helicopter Products
Futaba® Home Page
JR radios

Spektrum

OS Engines