We all have that friend that we no longer want us to be connected on Facebook, but didn't unfriend him / her. For fear of hurting someone's fealing, we keep the friendship there. Write down your De-Card. Your De-Card will stay private unless you both write down De-Card to each other.
Check out the site here:
This project uses Facebook Graph API and raw HTML parsing for parsing user's data, Server-side canvas technique for generating open-graph image for shared posts, user invitation count. Try to sharing these links on social network like Facebook:
In order to get more users, I let users choose to share their De-Card to public anonymously. Once they checked to allow me to share their de-card, I can see their de-card at admin panel and share them. I also opened a Facebook Page to promote the service.