LaTeX Distributions

TeX Live
proTeXt
MiKTeX
MacTeX

LaTeX Editors

Texmaker
TeXworks
Eclipse with TeXlipse plugin
Emacs
TeXShop
LEd
TeXnicCenter
See here and here

Resources

ShareLatex Videos
Latex Tutorial
Latex for Beginners
The Not So Short Introduction to LATEX 2ε
LATEX Project
Latex Wikibook
LATEX for class and package writers