This website contains some information about how LaTex works, some instructions on how to install an editor on your computer, and an extensive list of math commands. Accessed 05/09/14.
This PDF covers typesetting, formatting, graphics, indexes and bibliographies. Includes an index of the contents. Makes a great reference guide. Accessed 05/09/14.
This website is comprehensive, and includes detailed information about how to use LaTeX as well as technical information about how the system works. Also available as a PDF. Accessed 05/09/14.
Detailed table of the different TeX editors and their features. Useful for intermediate to advanced users who have specific typesetting needs. Accessed 05/09/14.