ereader versions of the usp.ruby mailing list archives
The usp.ruby mailing is "A text-only mailing list for Unix systems programming in Ruby". The original source content is only available via the mailing list. This repository makes the content available for e-readers (.epub and .mobi).
You can grab the files from the Downloads section.
You can find the original sources (including discussion) and sign up for the mailing at http://librelist.com/browser/usp.ruby/.
This repo also contains the code to build the book files from the .mbox file. Clone the repo and check out the Rakefile to see how it works.
If you want to contribute:
GPLv3