The Internet is the Inter-Connection of computer networks.  You are reading this FAQ from the Internet right now.  An Intranet is a limited access network that is setup for one our more organizations.  Today, most Intranets actually operate over the same physical Intranet, but restrict access to their information.
If your organization needs to connect a group of people to share information that is proprietary or secret, you can implement an Intranet that will allow secure communications between all of the organization members.
If an Intranet sounds like something that your organization may find useful, please contact a WISR rep to discuss details on how to implement an Intranet.