Below is a comprehensive listing of all the best discussion groups and hunting and shooting related magazine websites we could find:

The 56.Com
Airguns Today & Shooting Today
Alberta Bucks
Alberta Fish and Game Association
The Accurate Rifle
African Hunter
AllOutdoors Hunting
American Shooter
Beartooth Bullets
British Columbia Wildlife Federation
Bowhunter Magazine
Bowhunting Net
Buckmasters Online
Canadian Firearms Digest
Canadian Firearms Digest - Search Directory
Canadian Shooting Sports
Clay Shooting Magazine
Cylinder & Slide Articles
Discussion Group: 1911Forum.com
Discussion Group: 22 World
Discussion Group: 24 Hour Campfire
Discussion Group: The Accurate Reloading Forums
Discussion Group: Alberta Bucks
Discussion Group: Alt.sport.shooting
Discussion Group: Antique Gun Ask Our Experts Forums
Discussion Group: Assault Web
Discussion Group: Benchrest Forum
Discussion Group: Brian's Shooting Forums
Discussion Group: British Firearms Collectors Forum
Discussion Group: Canadian Gun Nutz
Discussion Group: Can.rec.hunting
Discussion Group: Can.talk.guns
Discussion Group: The Coyote Gods
Discussion Group: CSP Rifle Forum
Discussion Group: The FAL Files Forum
Discussion Group: The Firing Line
Discussion Group: Forum.Eders.Com
Discussion Group: Home Gunsmithing
Discussion Group: The Huntmasters
Discussion Group: Huntamerica
Discussion Group: Glock Talk
Discussion Group: Go Go Varmint
Discussion Group: Gunboards.Com
Discussion Group: Gun Reporter
Discussion Group: Gunsmith Metalworking
Discussion Group: Gunsmithing - eGroup
Discussion Group: Hard Core Talk
Discussion Group: Hunting Information Systems
Discussion Group: The Kel-Tec Owners Group Forum
Discussion Group: Lee Enfield Collectors Forum
Discussion Group: Load Your Own
Discussion Group: Long Range Hunting.com
Discussion Group: Mac Gun Forum
Discussion Group: Machinist's Workshop
Discussion Group: Martini-Henry Collectors Forum
Discussion Group: Parallax's C&R Collector's Firearms Forums
Discussion Group: Pistolsmith
Discussion Group: The Practical Machinist
Discussion Group: Rec.guns
Discussion Group: Rec.hunting
Discussion Group: The Reload Bulletin Board
Discussion Group: Ruger Forum
Discussion Group: The Russian Mosin Nagant Forum
Discussion Group: Screwdriver Activism
Discussion Group: Service Rifles Forum
Discussion Group: Shooters Page
Discussion Group: Shotgun Talk
Discussion Group: Small Arms Ammunition
Discussion Group: Smith & Wesson Forum
Discussion Group: Snider Enfield Forum
Discussion Group: Swedish Mauser Forum
Discussion Group: Stopping Power
Discussion Group: Talk.politics.guns
Discussion Group: Team Bo-Mar Site
Discussion Group: The Trap Doctor
Discussion Group: Trapshooter Discussion Threads
ESPN Outdoors
Field & Stream
Firearms Tactical
Florida Shooting
Game Calls and Hunting Products
The Goose Pit
GuideOutdoors.com
GunBlast
Gun Broker
Gunnery Net Links
Guns & Shooting Online
GunsAmerica
Gun Index
Guns Magazine Features
Gun Scholar
Gun Web
HuntingDigest.com
ISSF News
Link Select Sportsman Directory
The MAC Resource Page
Manitoba Wildlife Federation
Mike Ackerman's Web Page
NRA Publications
Outdoor Life
Peterson's Hunting Magazine
Pilkgun Competition
Precision Shooting
Real Guns
The Reload Bench
Responsible Firearms Owners Coalition of British Columbia
Welcome to Remington Country!
Rifle & Handloading Magazines - Back Issue Listing
Russian Mosin Nagant Pages
Saskatchewan Bucks
ShooterNet
Shooters.com
Shooters Talk
Shotgun Sports
Sierra Bullets X-Ring Newsletter
The Sight's M1911
Sixgunner
Sniper Country
Sporting Shooters Association of Australia
Sporting Shooters Association of New Zealand
Sportshooter.com
The Sportsmans Guide
Stover Publishing Hunting Publications
SubGuns
Trapshooting Hall of Fame
Whitetaildeer.com
XOutdoors Magazine
Xtremeaccuracy.com
Yukon Fish and Game Association

 
For those of you that are into Game Identification:

Ducks at a Distance
Greatlodge Sporting Species of the World
Hinterland Who's Who - Canadian Wildlife Service
Remington Country - Hunting Ducks & Geese
Remington Country - 8 Points on Bucks
 

Interested in electronic books?
Creasy: Fifteen Decisive Battles of the World
Kincaid:  Adventures in the Rifle Brigade
The Red Fighter Pilot - Manfred von Richthofen