Nevin Berger is the Senior Director of User Experience and Design for TechWeb of United Business Media. Previously he was the Director of Design at Ziff Davis Media, Senior Interaction Designer at Oracle Corporation/Peoplesoft, Inc., and held Online Creative Director positions at World Savings, Ziff Davis, and OFOTO.

Michael Arent is the Vice President of User Experience at SAP Business Objects, and has previously held positions at SAP Labs, PeopleSoft, Adobe Systems, MetaDesign, Sun Microsystems, and Apple Computer. He is a co-author of the first definitive book on software prototyping, Effective Prototyping for Software Makers (Morgan Kaufmann). In addition, Michael is the holder of a number of national and international patents.

Jonathan Arnowitz is currently a Senior User Experience Architect at Google. Jonathan has over 20 years experience in designing user experiences, and recently co-authored the book Effective Prototyping for Software Makers. Jonathan started out designing interactive multimedia software. In 1991 Jonathan moved to the Netherlands where he was an Interaction Design Consultant for over 10 years. Most recently, Jonathan worked as a Senior Interaction Designer for PeopleSoft and then as User Experience Architect for SAP Labs where he worked on designing, training, and implementing User Experience Patterns for the next generation of SAP Applications. Jonathan is also a volunteer for ACM/SIGCHI where among other things he was the co-founder of the DUX conference (Designing for User Experiences), former co-editor in chief of Interactions Magazine, and most recently the Design Community co-chair for CHI2008. He also loves music, almost any kind but has a particular place in his heart for Gustav Mahler--as well as things fin-de-siecle in general.

Fred Sampson is an Information Developer for the Content Management and Discovery team at the IBM Silicon Valley Lab, where he helps user experience designers create self-documenting user interfaces. He plans to be an information architect when he grows up. Fred has been a committee member for the DUX (Designing for User Experience) and CHI (Computer-Human Interaction) conferences, and contributes regularly to ACM Interactions magazine. Fred is Vice-President for Finance of ACM SIGCHI, a senior member of the Society for Technical Communication, and a member of the Information Architecture Institute and the Usability Professionals Association. He lives on Monterey Bay in California.