In the future, I am probably likely to mention conferences mainly if they produce papers I want to cite. The following is some information that has collected here about a few conferences, but I don't know whether I'm planning to keep it here indefinitely.
Third Annual International Lunar & Mars Exploration Conference, November 17-20, 1996, San Diego, California, USA. Was to include presentations on Pepsi's advertising program and other commercial topics. I haven't yet tracked down any information about ordering the proceedings but there have been proceedings in the past.
International Symposium on Space Tourism, March 20-22, 1997, Bremen, Germany--see the official web site for more information.
International Space University 1997 Annual Symposium: New Space Markets, May 26-28, 1997, Strasbourg, France.