FarmOS is a web-based system for managing an operating farm. It is still in the early phases of development, as we build out the data types and relationships. It is built on top of Drupal (http://drupal.org (link is external)).
A working demo is available for folks to play around with at: http://demo.farmos.net (link is external) (message @m.stenta for a login: http://farmhack.net/user/1999/contact (link is external))
Join in the discussion on IRC at #farmOS (on Freenode): irc://irc.freenode.net/farmOS
More info: http://farmos.org (link is external)