Control Panel

For accounts using CPanel, you can avail some value added knowledge about how to efficiently utilize cpanel in its forum.
cPanel Forums

Demos of cPanel and Web Host Manager are available below. Please note that some features are disabled for security purposes. To see a product demo, click on the respective link below:

cPanel Demo
Username: demo
Password: demo

WebHost Manager (WHM) Demo
Username: demo
Password: demo

For Informative Source, please refer to:
FAQ

You may submit request additional features to be incorporated in cpanel. These requests would be studied carefully and if found feasible and important would be tried to be built in the new release of cpanel. You may submit your request at:
Feature Requests

You can report any big, if found in cpanel here:
Bug Reports