So, here are some links I've been collecting over the last couple of days. Please suggest more in the comments if you have them. There is a real community of Schwinn fanatics out there ("enthusiasts" doesn't seem like a strong enough word!), and I know a lot of visitors end up here at the OBB looking for Schwinn stuff. The few posts I've done on my wife's Suburban are by far the most visited.
Eventually, I'll create a dedicated section of links in the sidebar for Schwinn resources. Until then, here are a few good ones. I get the feeling I'm just scratching the surface here, so please give me more!
By the way, I keep accidentally typing "Scwhinn", so if you catch one that I haven't corrected, do let me know, since it will affect how people find what they're looking for on my blog.