A vision that began 6 years ago in Chicago has become a dynamic reality. At the end of its conference in June 2000 the Pulmonary Hypertension Association (PHA) called its first meeting of international attendees. About a dozen international registrants initiated the formation of new relationships marked by continuing contact with PHA. Those of us who met with our internationally based colleagues at the Seventh International Pulmonary Hypertension Conference, held from June 23 to 25 in Minneapolis this year, realized how far we have come since that conference 6 years ago. We could only marvel at how the concept of