This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
There are two ways of accessing a UDDI registry: 1) Send SOAP requests 2) Browse a web interface The former requires the use of JAXR or a proprietary API and it would probably be best to just read about it in the appropriate tutorial (Sun's web services tutorial for JAXR, the vendor's tutorials for their APIs). The latter is also very much vendor-specific so, again, you'll need to turn to their documentation. If you're wondering where to get a UDDI registry, you could consider Novell's and Systinet's UDDI products which are available as free downloads (developer license).