VMWare server is an excellent virtualzation tool for the workstation. It could be used as a limited functionality version of VMWare Workstation or as a host for your virtual machines, with all of the bells and whistles that came with Workstation, such as:- Centralized Management of Virtual Machines.
- Remote management of VM's and configurations.
- Integration with VMware Player and Workstation, to view the machines hosted by Server.
Room for Improvement:
Unfortunately, this software has reached its End-Of-Life, and has held that status for almost two years. Meaning, there are no new software updates or available downloads for it. This product has basically been replaced by ESX, ESXi and vSphere, which are functionally less resource intensive because of their design. We used this tool during my Linux classes when I was attending College for my B.A.
As of now, OracleVM (formerly known as VirtualBox), is an excellent solution that is open-source and freely available for download.