So far we have set up a couple of Google Groups for IAH2009. Anyone can view them, but to post to either of the groups, you have to sign in and become a member of that group. Once you've done that, you can post to the group by either the website, or via email.
IAH2009 Registration Buying and Selling Group
http://groups.google.com/group/iah2009_reg_sales
iah2009_reg_sales@googlegroups.com
IAH2009 Transportation
http://groups.google.com/group/iah2009_transportation
iah2009_transportation@googlegroups.com
IAH2009 Lodging
http://groups.google.com/group/iah2009_lodging iah2009_lodging@googlegroups.com