Following a sold-out event in May 1999, XML One is returning to Santa Clara, California, November 8 through 11, 1999, for its fall conference. The expanded conference offers four tracks and 62 sessions, reflecting the latest advances in Extensible Markup Language (XML) technology. This vendor-neutral conference was designed for programmers, developers, engineers, software architects and system analysts, database managers and administrators, Internet application developers, and corporate Web masters. Its tracts and sessions will explore the practical specifics of building quality, high-performance integrated systems; and teach attendees to evaluate and refine XML, Web, and e-commerce technical solutions. The conference will also provide how-to advice for current projects, and explore future XML tools and service offerings. On November 11, 1999, the conference will host a panel of experts from Bluestone Software, eProcess Solutions, IBM, Oracle, Microsoft, and Sun Microsystems. The panel will discuss business-to-business integration, Web commerce, BizTalk, XML/EDI, XML servers, XML-enabled databases, Enterprise Java, and messaging middleware. Admission to this session is free. For additional conference and registration information, see http://www.xmlconference.com/xmlusa/.