On top of the resources that you listed, I have found these two sites to be incredibly useful: 1. [peeron.com][1] - Large set database and instruction scan library 2. [bricklink.com][2] - Lego marketplace selling millions of used and new parts and sets. This is also a nice reference for information and inventories related to old sets. It's not a site, but if you don't mind books, I would recommend [The Cult of Lego][3] by John Baichtal. You also might be interested in finding a LUG (Lego users group) near you. Here's a [map][4]. [1]: http://peeron.com [2]: http://bricklink.com [3]: http://www.amazon.com/Cult-LEGO-John-Baichtal/dp/1593273916 [4]: http://www.lugnet.com/map/