CampControl's Document Manager provides a centralised location to store documents and other file types. It is designed for the easy storage, organisation and sharing of important project documents. It sports a highly performant (ie very fast!) search facility.
A powerful benefit to this is the ability to allow people, both inside and outside the company, to exchange files - which is easier to use than systems like Google Drive or Dropbox.
Permissions may be set on each folder to the following, with respect to outside users:
Internal users - i.e. company users created on CampControl - can read and update all folders.
Exchanging large files with outside users
If you wish for someone outside the company to send you a file that is too big for email, you create a folder (select a folder, click 'Action' -> 'Add subfolder') and set it's access such that outside users can 'read and update'. This is then accessible through a link, which is obtained by selecting the folder, clicking 'Action' -> 'Get Folder Links'. Copy and paste the update link into an email and send to the outside party. This folder may be re-used as necessary - with the link values remaining unchanged.
There is no system structure imposed on the the folders, leaving each company to freely create a folder structure to suit it's needs. Arbitrary folders may be created to any depth in each of these folders for the grouping together of related documents.