6 links
Lugnet: Lego System Trains
news.lugnet.com
Information, opinions, links, forum, and reviews for train products, projects, and models.
The Lego Train Depot
ngltc.org
Dedicated to current and past train sets, project plans, ideas, and layouts. Provides tools, resources, and reference information.
Tom's Lego Stop: L Gauge
lgauge.com
Numerous pictures and description of train engines, freight and passenger cars, cabooses, and structures. Also, contains photographs of big truck models.