LaTeX Help Page
LaTeX for You!
Overleaf: An online LaTeX document compiler.
General Aspects about obtaining LaTeX. This site explains a little about the software needed to run LaTeX on a Linux, Mac OS X, or Windows machine.
MacTex or Mac OS X
proTeXt for Windows
LaTeX Help Guides:
Getting Started with LaTeX: A readable intro with examples.
Detexify: Draw a symbol with a mouse, then this site finds the correct LaTeX code for it.
Creating Tables in LaTeX