Scott Carson, a Catholic and a professor of philosophy at Ohio University, recently posted a very worthwhile article on private judgment titled "Why Privileging Private Judgment Is A Sin Against Unity". Tim Enloe posted a response at ReformedCatholicism. My reply to Tim can be found here. Michael Liccione adds his comments here.
"Let unity, the greatest good of all goods, be your preoccupation." - St. Ignatius of Antioch (Letter to St. Polycarp)