I wrote the Publicity Basics page at least six years ago, and last made significant changes to it in 2012. It's intended for organizations and publicists, and it's based on my experiences on the receiving end of an awful lot of publicity email and badly-formatted brochures.
I've just re-organized and updated it. Most of the content is the same, but I sorted all of the tips out into logical categories. Take a look and post any comments or suggested changes!