qUDDI (pronounced "cutie") is a quick UDDI registration process that gets your XML Web Service entered into the public UDDI registry in just seconds. All you need to supply is your email address and the Name and URL of your XML Web Service and you're all set. Once your XML Web Service is published in the UDDI registry, you can use tools like Visual Studio .NET to locate and integrate your service into your .NET applications.
Business Explorer for Web Services (BE4WS) is an XML-based UDDI exploring engine that provides developers with standard interfaces for efficiently searching business and service information in single or multiple UDDI registries. This page describes BE4WS and provides links to toolkits and examples