-Facebook contacts will not be able to view private photos, as they are not able to
-authenticate to your site to establish identity. We will address this
-in a future release.
+Chose "Website" as platform. Next you have to let your application be reviewed. You need these permissions for that:
+
+publish_actions, publish_pages, user_posts, user_photos, user_status, user_videos, manage_pages
+
+After your application was reviewed, your users can post to Facebook.