In the previous millenium, I wrote a book, Making TeX Work. Alas, it's out of print now. (But I've written another!) You can get the (unlikely to be useful) sources for Making TeX Work from GitHub.

I once did some work on a WWW interface to the Comprehensive TeX Archive Network, but that's its own thing now and nothing to do with me. I also hacked together some online help pages for various now antiquated versions of TeX things, that I believed long since passed out of utility.

Apparently, I was mistaken. Back by reader request: online help for Plain TeX, LaTeX, BibTeX, MakeIndex, and SliTeX.