In Reply to: Ruels for Commercial Postings posted by I_AM on May 30, 2007 at 19:04:01:

Promotional posts are limited no more than one post per thirty day period, per person, enterprise, or event. It does not matter if the thing being promoted is free or paid. These posts include, but are not limited to:
dive trips
dive club meetings
dive equipment sales
lectures
This rule means that any individual user can make only one promotional post of any kind every thirty days. If that user has more than one event to promote, he/she must combine those in their one allowed post. This rule also means that any given event my only be promoted one time in a thirty day period. Subsequent posts by other users, promoting the same event, are not allowed and will be deleted. Exceptions to this rule are posts about DFG & MPLA/MLMA meetings, and certain charitable events such as the annual Chamber Day event. Events qualifying for exception will be determined by the webmaster.
The following promotional posts are specifically prohibited:
dive classes that include location and/or time
lectures to promote dive classes
demonstrations to promote dive classes
announcements related to any of the above
The only exceptions to this rule are with the written permisiion of one of the editors.