Deefbox is a simple but very important tool from CQsight. This tool would help us (site owners) to understand in real time on how useful our site is to others.
In other terms it would help us to understand the search pattern of the users and whether what they came looking for is available in our site or not.
Setting up the tool is pretty simple. Just follow up the instructions given here http://www.cqsight.com/HowWork.aspx
After you signup and setup the script in your site periodically watch out the dashboard which they would provide you in cQsight to understand your visitors usage pattern.
I don't want to write a tutorial for this tool :) instead would like people to try it out themself and see how simple and powerful the tool is.