The longest domain name that I ever found on the net is www.geschenke-galerie-mueller-flughafen-frankfurt-hahn.de. It belongs to a souvenir shop at the airport Frankfurt/Hahn. But not only the domain name is unusual. Did you take a look at the photo on their front page? ;-) I submitted the URL to the HOUS (Hostnames of unusual size) project today. Will it appear on the list??