Das LuaTeX-Paket lua-visual-debug gibt dem Textautor Hilfen bei Positionierung von Elementen auf der Seite, in dem es die normalerweise unsichtbaren Elemente · http://www.luatex.de/2012/02/lua-visual-debug-das-unsichtbare-sichtbar-machen/

Notizen zur Konfiguration des GNU Emacs als Aufgaben- und Terminverwaltung · http://suenkler.info/emacs-orgmode.html

Online collaborative LaTeX Editor in the cloud, Collaborate on LaTeX documents in real time in your browser · https://www.sharelatex.com/

It is basically a markdown to anything converter. In addition to markdown it handles raw LaTeX, thus math can be set using LaTeX (and AMS) environments. In addition to LaTeX and ePub it will create odt, docx or docbook output. How much math survives depends on the output format. (This may be bad news for ePub output.) There is even a LaTeX reader which can be used to convert the original LaTeX document to markdown. But be prepared to lose math, images and tables. There is an article in the TUGboat 32:3 (2011) that describes the use of pandoc to generate LaTeX output. (There are articles about converting LaTeX to ePub and using PDF on various ebook readers as well.) · http://johnmacfarlane.net/pandoc/