Peer reviewed article about LibStats:
"LibStats: An open source online tool for collecting and reporting on statistics in an academic library." Performance Measurement & Metrics 9.1 (2008): 18-25.
Demonstration of LibStats:
http://www.wendt.wisc.edu/projects/libstats-demo/questionAddForm.do
Blog by a library about their use of LibStats:
http://pegasuslibrarian.com/2006/10/making-reference-desk-statistics-fun-and-even-more-useful.html
Files by different library's about use of LibStats:
http://groups.google.com/group/kansas-libstats/files
The open source code for LibStats:
http://code.google.com/p/libstats/