N Magazines:

N Scale Railroading Magazine

2) Online retailers:

Wig-Wag Trains

N Scale Supply

Rio Grande Hobbies

BLW Nscale (Brooklyn Loco Works)

Caboose Hobbies

Hobbysmith.com

Online Trains

Tex N' Rails

Amherst Depot

MB Klein

3) Other Clubs and Layouts:

North Virginia NTRAK

Orange Belt Lines

OWNRy, Harbor Division

Mount Rainier N Scale Club

Mark Bridgwater's Feather River Route

Bellingham Society of Model Engineers

4) Local Railroad Organizations:

Mount Rainier Scenic Railroad - Elbe, WA

Northwest Railway Museum - Snoqualmie, WA

5) National Model Railroad Organizations:

National Model Railroad Association

NTRAK Modular N Scale Railroading

The N Scale Collector

6) N Scale manufacturers:

Locomotives & Rolling Stock

Athearn, Inc.

Atlas

Con-Cor

Deluxe Innovations

Fine N Scale

Intermountain

Kato USA

Life Like Products

Micro Trains

Red Caboose

Walthers

Bachmann

7) Structures

Showcase Miniatures

Walthers