You can advertise your Monthly Support incentives on your profile. Your profile is at http://www.zivity.com/users/YOUR_USER_NAME
First, go to your profile and hit "Update Status":
Enter the text you'd like in the "Write on your wall" text box, and then check the "Make this a Featured Post" box.
For ideas about various kinds of perks to offer to backers, please see the FAQ item "What do backers get in return for supporting me?"