Jon Skeet is a C# and Java developer currently working at Google in the UK. For many years he has been a frequent poster in technical newsgroups, and has been awarded as a C# MVP by Microsoft since 2003. His C# web site contains some of the most frequently referenced articles on topics such as singleton implementations and parameter passing. He was a member of the writing team for "Groovy in Action" in 2007, and his first solo book, "C# in Depth", came out in May 2008. Jon is interested in tracking how languages and platforms are evolving to blend imperative and functional styles of programming, as well as providing more support for parallelism.

While his "day job" is programming in Java, Jon is a C# developer at heart. In his 20% time at Google he is currently working on a C# port of the recently open-sourced "Protocol Buffers" serialization framework.

Bill Wagner, co-founder of SRT Solutions, has developed commercial software for the past twenty years, leading the design on many successful engineering and enterprise Microsoft Windows products. He now spends his time facilitating .NET adoption in clients' product and enterprise development. Bill's principal strengths include the C# language, the core framework, Smart Clients, and Service Oriented Architecture and design.

In 2003, Microsoft recognized Bill's expertise and appointed him Regional Director for Michigan. In 2005, he was re-appointed and also awarded Microsoft C# Most Valuable Professional (MVP) status.

A frequent speaker and internationally recognized author, Bill has been a contributing editor, editorial board member and columnist for over a decade. Addison Wesley released his latest book, Effective C#, in 2004. He is a founding member of the Great Lakes .NET User Group and the Ann Arbor .NET Developers Group and actively contributes to the Ann Arbor Computer Society.