GE Aviation
Honeywell
Pratt & Whitney Canada
Rolls-Royce
Safran

Airbus Helicopters
Bell Helicopter
Leonardo Helicopters
MD Helicopters
Robinson Helicopter
Sikorsky

The Vertical Flight Society
Helicopter Association International

ALERT 5 - great coverage of military aviation
All the world's rotorcraft - the best helicopter database on the 'Net
Aviation Week - the name says it all
Defense-Aerospace.com - exceptional coverage of all things A&D
Defense News - quality coverage of the defense industry
FlightGlobal - the granddaddy of aviation news
HeliHub - the helicopter industry data source
Helicopter International - the authority in helicopter news
HeliOps - some of the best helicopter photography you'll ever see
Janes - unrivaled defense & security insights
Rotorhub - good insights from the Shephard Press team
Secret Projects - the Mos Eisley Cantina for aerospace geeks
The Aviation Geek Club - excellent historical articles
Vertical Magazine - another good helicopter site

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