Your business model may eventually morph into an advocacy site. Have a bunch of campaigns running with postcard size messages and a pay to send mode. Let user

Your business model may eventually morph into an advocacy site. Have a bunch of campaigns running with postcard size messages and a pay to send mode. Let users sign-up with data to verify their riding and send to appropriate representatives. Lower cost as much as you can by being able to bulk send. Try and figure out what your best services and business model will be. Building a user-based site with social network plug-ins to drive viral growth will probably be key. Enable posting about sending the post-card and an in-site functionality to track campaigns and whether you inspire others is probably a promising way to go after end users.