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 rules indicating the proper and polite way to behave. Her failure to respond to the invitation was a serious breach of etiquette. a book of etiquette. telephone etiquette [=the proper way to behave when speaking on the telephone]. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. Comments & Questions.