Schematics for products that are not currently available.

dirish:
The underlying problem (and why I consider this a Site question/comment) is that there is no way to get the original documentation for a product that is currently not available.

I agree, I was in a similar situation recently with a breakout board I bought last summer and didn't get around to using until now. Unfortunately in the meantime it vanished from SFE's website along with the schematics/pinouts/etc. A couple of emails to Sparkfun's support got me sorted out OK, so it's not really a problem, but I found myself wishing there were a "old/discontinud products and datasheets" section on the website.