Need for consideration as an Administrative Virtual Assistant

I am a new member. I am a professional Secretary with some qualitative years of experience. I have so much confidence in myself that I can handle all secretarial/administrative duties. However, for some time, I have been carrying the pregnancy of this idea of being employed by various employers and carrying out their jobs for them online. Examples of such jobs are:
Organising and taking notes at meetings, Preparing documents from scratch to finish, Writing (Profiles, Newsletters, brochures etc) and other unique duties needed to be carried out by professionals in the office. I've been receiving some responses, but I need more and more for I believe its needed in the business world. how do I go about advertising it? thanks