A new stable version of Rails Station is available. The Content
Management System Engine reaches its 0.3 version. Although much work
is still pending until the 1.0 release, the engine already provides
much functionality.
http://rstation.wordpress.com/2009/10/20/station-0-3/
Station provides your Rails application with a "CMS framework".
This means authentication, authorization, roles, permissions,
categories, tags, etc… but from a very flexible scope.
    Rails    = Ruby + Web Development
    Station = Rails + Content Management
Web:  http://atd.github.com/station/
Code: http://github.com/atd/station
Doc:   http://atd.github.com/station/rdoc/stable/