Hey, you have a good memory.
In fact, the only reason I remember that is because I spent about 20 minutes doing that drawing, going, "Well...no that doesn't look right, it's more like this...no...wait...argh..."
Anyway, the post I think you're talking about is here: http://www.learningstrategies.com/forum/ubb/Forum8/HTML/001706.html
It wasn't rings in a binder, though..it was just a drawing explaining divergence and convergence...and yes, chain link fences are mentioned =)
Hope the post helps 
-Ramon http://razor.ramon.com
