The tag [tag:free] seems to be put on questions with a few different meanings

 1. [Software with no cost][1]
 1. [free memory][2]
 1. [free/busy info in outlook][3]

It seems either some retagging is in order, or the tag is not too useful and should be banned.  Thoughts?

  [1]: http://serverfault.com/questions/15470/free-windows-server-anti-virus-and-firewall-programs
  [2]: http://serverfault.com/questions/110581/memory-reported-by-free-does-not-reconcile-with-physical-memory
  [3]: http://serverfault.com/questions/55728/publishing-free-busy-info-in-exchange-outlook-environment