Code Maps on Visual Studio
Visual Studio 2012 comes with a nice feature called Code Maps. This is a graphical tool that let you visualize code structure and call stacks during debugging sessions.
During debugging, right click the current method and select “Show Call Stack on Code Map”:
The cool thing is that you can save this diagrams and use them to communicate with your team (check out the comment I added to it in the following diagram):
Enjoy!