We need a custom script (or an installation of Joomla or Drupal) optimized for landing pages management.
Landing pages are pages or minisites connected with a campaign (CPC, SEO, BANNER etc)
Our project could manage different kind of pages organized in campaign:
each page must have a form and variables which can track visitors.
The fields of the form may vary on each pages.
Now we are using unbounce.com. We don't need all the features of the unbounce but only management and fast creation of the pages.