Located at Washington University, St. Louis. This site is home to Jaynes's book, as well as a number of other papers, some of which are included in the lists above. This WUSTL web site can be found at http://bayes.wustl.edu.
The ISBA web site can be found at http://www.bayesian.org.
This is the home page of a group at the NASA Ames Research Center. It contains links for a few of their interesting projects. They are located at http://ic-www.arc.nasa.gov/ic/projects/bayes-group.