1 Audience Matters - When writing a newsletter, it is important to keep your audience in mind. This will impact the information that you choose to include. Make sure that your audience has some potential interest in the content of the newsletter.  Length - The newsletter should be concise.
Chatham House is the origin of the anonymity rule known as the Chatham House Rule, which provides that guests attending a seminar may discuss the results of the seminar in the outside world, but may not discuss who attended or identify what a specific individual said.
The House also adopted the Rules for Congressional members as well, including a line item that makes it illegal for elected officials to record or broadcast video from the House floor. The vote was not unanimous, though. 193 Congressmen voted against the Rules.