If your interest is Lionel “Super O” Track let me invite you to join the:
Lionel_SuperO_Track_Yahoo_Group
A great source for knowledge about the “Super O” era that focus’s on the track system. A friendly group with knowledge much like the Classic Toy Trains Group. The link is below.
Very best, Mike
The History of Lionel “Super O” Track
( http://www.tcamembers.org/articles/operating/supero/index.html )
Lionel_SuperO_Track Yahoo Group
( http://groups.yahoo.com/group/Lionel_SuperO_Track/ )
“e-Train” TCA Online Magazine
( http://www.tcamembers.org/articles/ )