Finally some talk about UDDI. This has been a very quiet topic for a while. I wonder if folks have been so busy selling their org's on Web Services that they are now turning their attention to managing them. At any rate there are not a lot of stand alone UDDI providers out there. Most come as part of a larger Web Services management suite.
I have been working with the UDDI provider built-in to Windows Server 2003. It is pretty basic and of course Microsoft changed the nomenclature of the standard UDDI pieces. But in the end it does work and I have even managed to get the UDDI client built-in to the webMethods Integration Server to talk to it.