Ben's Lego Station - Photograph's and information about building toy trains. - http://www.bigbenbricks.com/ben/lego/lego.html
Larry Pieniazek's Lego Page - Train related information about American Prototype rolling stock and engines, as well as containers, are featured. - http://my.voyager.net/~lar/lego.html
Jacob's Cable Stayed Suspension Bridge - A two meter double track cable stayed suspension bridge, includes pictures of how the mini-figs built the thing. - http://lego.jacob-sparre.dk/Transport/Broer/Skr%E5stagsbro-parallel/
Train Lego Creations by Paul Foster - Has pictures of Paul's vehicles for laying track and general maintenance. - http://www.gmlug.org/foster/train.html