LaTeX

Equation Editor
- build equations from drop-down menus and preview typesetting before copying LaTeX commands into document
MiKTeX
- typesetting base; includes bare-bones TeXworks editor; install new packages from Maintenance\Package Manager
TeXstudio
- TeX editor with greater functionality; includes pdf preview, symbol menus, and wizards for tables, page setup, and more
Wikibook
- resource for LaTeX markup language; includes a special section on use in Linguistics
JabRef reference manager
- organizes and displays references in .bib files; nice features include file linking (e.g. pdf of an article linked to its reference)
Google Scholar
- search for a reference and click "cite" in bottom right corner of search result; next window has an option: "Import into BibTeX"