He is based in Redmond, Washington. He works with Fortune 100 and major G100 enterprises worldwide, helping them to stay ahead of the curve and take advantage of the latest unreleased technologies. In the past two years, he helped many customers all around the world to design and develop solutions based on technologies such as Identity and Access Management, Windows CardSpace, Windows Communication Foundation, and Windows Workflow Foundation. He frequently serves as a speaker at international conferences such as IDWorld, Gartner Summit, TechEd, and the like. His blog, located at http://blogs.msdn.com/vbertocci, focuses on identity and distributed systems architecture; it is periodically translated into Chinese at www.china-ac.net.cn/zmjgsbkzxnew4.aspx.