Newsletters are more trouble. The ones you can buy are getting better, but everybody still knows you did not write them. I am talking here about authoring your own thoughts. Let people know that you know something. How are you.
Advocates speak or write in support of people and ideas.
Tell people you were thinking of them because you found an idea that helps solve problems in situations similar to theirs. Employ the vocabulary of advocacy. Survey your clients, prospects and centers. It might surprise you how different the advisory process really is from selling as you know it. Form and actively use strategic alliances with other professionals.