Simon World has an informal list of dos and donts for bloggers. Some of the interesting ones include #15 “Learn to spell or how to use a spell-checker.” and #22 “[P]lagiarising is encouraged” Although… I think my favorite is #36, “Logic and reason are for the weak. Knee-jerk and off-the-cuff reactions are for the blogger.”

There is also a useful bibliography of blogging links that make good references.