Discussion Board Etiquette
This page provides several tips for message board posting etiquette from basic elements like providing a relevant title on a post to more serious issues such as staying away from posting about a personal business or product.
Homework, Netiquette: A video addressing various forum etiquette in a humorous an instructional manner. The foum nanny covers many aspects of forum netiquette, including tips such as "using the search feature".
I like these rules, they are similar to most netiquette rules, but add a few rules that may be forgotten if not stated. I like the part about USING ALL CAPS.