The following links are available:

The Moravian Church Worldwide
        www.moravian.org

The Moravian Church, Eastern District's Website.
       www.mcnp.org/edeb/edeb.htm

Philip Cooper's research on David Tannenberg
       www.davidtannenberg.com

SonRays Devotional Site.  (Not affiliated with the Moravian Church.)
       SonRays