Bill Evjen is an active proponent of .NET technologies and community-based learning initiatives for .NET. He has been actively involved with .NET since the first bits were released in 2000. In the same year, Bill founded the St. Louis .NET User Group (www.stlnet.org), one of the world's first such groups. Bill is also the founder and executive director of the International .NET Association (www.ineta.org), which represents more than 375,000 members worldwide. Based in St. Louis, Missouri, USA, Bill is an acclaimed author and speaker on ASP.NET and XMLWeb services. He has written or co-written Professional C#, Third Edition; Professional VB.NET, Third Edition; and ASP.NET 2.0 Beta Preview (all Wrox titles), as well as ASP.NET Professional Secrets, XMLWeb Services for ASP.NET, Web Services Enhancements: Understanding the WSE for Enterprise Applications, Visual Basic .NET Bible, and ASP.NET Professional Secrets (all published by Wiley). In addition to writing, Bill is a speaker at numerous conferences, including DevConnections, VSLive, and TechEd. Bill is a Technical Director for Reuters, the international news and financial services company, and he travels the world speaking to major financial institutions about the future of the IT industry. He was graduated from Western Washington University in Bellingham, Washington, with a Russian language degree. When he isn't tinkering on the computer, he can usually be found at his summer house in Toivakka, Finland. You can reach Bill at email@example.com. He presently keeps his weblog at www.geekswithblogs.net/evjen. Scott Hanselman is currently the Chief Architect at the Corillian Corporation (NASDAQ: CORI), an eFinance enabler. He has more than 13 years' experience developing software in C, C++, VB, COM, and certainly in VB.NET and C#. Scott is proud to be both a Microsoft RD as well as an MVP for both ASP.NET and Solutions Architecture. Scott has spoken at dozens of conferences worldwide, including three TechEds and the North African DevCon. He is a primary contributor to "newtelligence DasBlog Community Edition 1.7," the most popular open-source ASP.NET blogging software hosted on SourceForge. This is the third book Scott has worked on for Wrox and certainly the most fun. His thoughts on the Zen of .NET, programming, and Web Services can be found on his blog at www.computerzen.com. He welcomes email and PayPal'ed money at firstname.lastname@example.org. Farhan Muhammad is the Chief Architect of ILM Professional Service. He is also the Microsoft Regional Director (RD) for the U.S. North Central region. As an RD, he focuses on providing the vital link between Microsoft and the developer community. He has been a board member at the International .NET Association (INETA), where he actively helped support developers' communities worldwide. He leads the Twin Cities .NET User Group, a developers' community of more than 1,200 members in Minnesota dedicated to sharing .NET knowledge among developers. He has also written Real World ASP.NET Best Practices (Apress, 2003). S. Srinivasa Sivakumar is a Solution Architect for Microsoft India. Srinivasa has co-written more than 15 books and more than 40 technical articles for major publications. A list of his published materials is available at www3.brinkster.com/webguru/. Devin Rader is an Infragistics Technology Evangelist and is responsible for writing Infragistics reference applications and .NET technology articles, as well as the worldwide delivery of Infragistics' technology demonstrations. Devin is an active member and leader for the International .NET Association (INETA) and believes strongly in the software development community. He helped found the St. Louis .NET Users Group in November 2000 and is a frequent speaker at community events nationwide. Devin writes the monthly ASP.NET Tips & Tricks column for ASP.NET Pro magazine, as well as .NET technology articles for MSDN Online. He has served as the sole technical editor for a number of works, including Web Services Enhancements: Understanding the WSE for Enterprise Applications, ASP.NET Professional Secrets, and ASP.NET 2.0 Beta Preview (all published by Wiley).