Debugging with Fiddler: The complete reference from the creator of the Fiddler Web Debugger
Eric Lawrence (@ericlaw) is best known as the developer of the Fiddler web debugging platform, used by web professionals worldwide. Currently a Program Manager on the Internet Explorer team at Microsoft, Eric has developed web applications and browsers since 1999. He blogs at http://blogs.msdn.com/b/Fiddler and http://blogs.msdn.com/b/IEInternals. In addition to Fiddler, Eric develops and maintains the freeware tools at http://bayden.com/.