I've long been a Fiddler fan. It's been a super valuable tool for debugging SOAP and REST based code. http://www.fiddlertool.com/ It rocks, but I often need to debug on the Mac, especially now when doing network programming in Silverlight. So I recently found WireShark. It's free, runs on Windows and Mac, is Open Source, and there are 3rd party builds for other operating systems. http://www.wireshark.org/ Read More......(read more) ...
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