Colin Campbell is a coauthor of Model-Based Software Testing and Analysis in C# and he has written several academic papers on mathematically rigorous approaches to software analysis. He is a founder and principal at Modeled Computation LLC, in Seattle.
Ralph Johnson is a research associate professor at the University of Illinois. He was one of the four co-authors of Design Patterns, and the leader of the group that developed the first automated refactoring tool, the Smalltalk Refactoring Browser. For the past few years, he has been working on documenting patterns of parallel programming.
Ade Miller works as a Development Lead with Microsoft’s patterns & practices group, where he manages several agile teams who deliver applied engineering guidance to Microsoft’s customers. His primary interests are in parallel computing and agile software development practices.
Stephen Toub works on the Parallel Computing Platform team at Microsoft. He spends his days designing and developing the next generation of concurrent and parallel programming models for .NET and Visual Studio. His team's blog can be found at http://blogs.msdn.com/pfxteamhttp://blogs.msdn.com/pfxteam.