Would be helpful to tag a few of your important links in Xenforo forum structures as well as capture gender and age of registered members so that we can have a better idea of our audience, all viewable within Analytics.
http://analytics.blogspot.com/2009/07/segment-your-traffic-with-user-defined.html
http://analytics.blogspot.com/2009/07/segment-your-traffic-with-user-defined.html