Use a third-party CSS or JS Framework, a self-hosted service like a CRM, or a third-party service with the site.
This module uses CTools plugins to help you interact with the Zendesk API. Currently there are 2 supported plugins.
Server-side data pivoting.
Start a Google Hangout with any user in your Drupal site right from within your site.
This module allows to connect your website to the Zip Alerts Service.