Works great! Single Sign on LDAP for WordPress

We used this plugin to integrate a single sign on system for our web site. Easy set up, excellent support by the miniOrange team, and we are up and running! The best part was the ability to customize which pages are password protected (or the entire web site), and customization options for the sign-in page. We are hosting on WP Engine, in case that helps anyone else looking for a SSO system.