LaTeX
LaTeX is a popular type-setting system to create technical and scientific documentation.
BibLaTeX
Reference Managers
Free PDF Viewers
SumatraPDF. When you convert your LaTeX source to PDF, this editor will automatically refresh its content without having to close the PDF file. If your are using Acrobat Reader, you need to close the program first, and then relaunch to view the latest edit.
Collaborative LaTeX Tools
Overleaf - online collaborative LaTeX editor
ShareLaTeX - online collaborative LaTeX editor
TrackChanges - offline collaborative editing of LaTeX documents
Other Tools related to LaTeX
Cryptocode: LaTeX package for typesetting pseudocode and cryptographic games
Detexify: draw a symbol to know its corresponding command in LaTeX
Convert LaTeX to Microsoft Word by GrindEQ - not free but can be used 10 times for free.
Ghostscript: an interpreter for the PostScript language and for PDF
History (yyyy-mm-dd):
2022-10-28: Added Cryptocode
2020-11-25: Added resources to Beamer themes and LaTeX templates
2020-06-19: Added Reference Managers list, and how to use Mendeley to generate BibTeX files