I had to find your article, make it free to post to other users, but have two type of in-box, one for premium users and another for everybody else,

how to make money, if you subscribe monthly you can post to anybody in box and they will receive it, along with 1000's of others, if you want to be notice you will be put in the premium box (premium box); charge to add features to your site like, color, multiple colors and the use of WYSIWYG editor, have everybody else use a simple editor no frills. If you want to discuss it email me: mykalmorton at gmail dot com