ntsfaq – Frequently answered questions about TeX extension
These answers come from the NTS-L mailing list. The answer deal with many details of the e-TeX TeX extension and the proposed New Typesetting System, of which a first base prototype system has now been released.
The answers also cover extensions to related systems, and summaries of pre-existing extensions.
Maybe you are interested in the following packages as well.
- amsmath-it: Italian translations of some old amsmath documents
- amscls-doc: User documentation for AMS document classes
- scriptfonts: A summary of mathematical script fonts for LaTeX users
- ctex-faq: LaTeX FAQ by the Chinese TeX Society (ctex.org)