D.W. Congdon, a Christian Universalist (and a Barthian as well if I’m not mistaken), maintains an index of various posts on UR out there in the blogosphere: Universalism in the Blogosphere

Be sure to also check out the rest of his great blog, The Fire and the Rose, especially his series (still a work in progress, but coming along nicely) Why I Am A Universalist: A Dogmatic Sketch.