As many of you know, awhile back the folks over at Codeplex developed a WT reporting data as a widget on their site...it's a good example of leveraging and sharing analytics data:

They develop some cool tools at Codeplex, including a  JSON viewer that's simple but effective.  This is a standalone tool, and a visualizer inside Visual Studio, and they went the extra mile and modified the viewer to work inside Fiddler too.  Bonus points for that move.  Here's how it looks inside Fiddler: