take a look also at the following if they fits your needs (the first two are italians, and they lack english documentation, sorry) http://www.archimista.it (ruby on rails) https://github.com/codexcoop/archimista http://www.xdams.org (java) https://github.com/xdamsorg http://collectiveaccess.org (php) https://github.com/collectiveaccess -- raffaele, @atomotic