i learned of desk tracker, libstats, and wufoo while reviewing a wiki (http://whywufoo.pbwiki.com) i saw referenced at the recent medical library association conference. my library is still collecting data about reference desk transactions using paper forms, but an online form would be much easier for the staff member that compiles all those hash marks.
thanks for directing my attention to this new (to me) tool, martha hardy and lisa mcguire!