found to cool things today:
https://flow.mixpanel.com/demo/#branch=www.example.com
building a flowchart of your website with exiting and continuing visitors.
and this js library, that could be used for such a tool:
http://jsplumb.org/jquery/demo.html
Keywords: flow chart
Attachment: Screenshot
flow.jpg
We dont plan to implement this, unless a sponsor or request comes with this requirement. We have worked on a simple version but we believe very useful report, Page flow Transitions