Prof. Andrew Lawrence Head of School of Physics University of Edinburgh UK Dear Prof. Lawrence: On behalf of Commission 40 (Radio Astronomy) of the International Astronomy Union, I am very pleased to support your proposal for an IAU Symposium entitled "The Virtual Observatory in action : new science, new technology, and next generation facilities", to be held during the XXVIth IAU General Assembly in Prague 2006. This interesting proposal departs from the usual, in the sense that it is focused in the Virtual Observatory project and not on an astronomical object or phenomenon. The Virtual Observatory project has the goal of making access to astronomical databases as seamless and transparent as browsing the World Wide Web is today. Being myself (as many other astronomers) a user of presently available archival databases I feel that it is important to review, shape, and define this ambitious project. The proposed scientific organizing committee is well balanced, and as a result of enormous potential of a working Virtual Observatory, this symposium will certainly be of interest for the participants of the Prague 2006 General Asembly. The proposal will include technology demonstrations with organized "walk-throughs" of software and science results. In summary, I amply support this proposal and look forward to its approval. Sincerely, Dr. Luis F. Rodriguez President of Commission 40 ccp. Dr. Virginia Trimble, President of Division XII Dr. Karel A. van der Hucht, IAU Assistant General Secretary