The PCs share files through these NFS servers as well. No user has a full-fledged UNIX workstation at his desk solely for his personal use. All of the workstations are stand-alone, and we don't centralize accounts through NIS, so all the workstations can function somewhat independently. We have one HP 4-port hub, which spreads four lines throughout various parts of the building. The most heavily populated section of our building has two separate lines running through it, and the traffic for each is isolated with HP bridges.
Most communication is done through e-mail locally and among associates worldwide.
We have lots of site aliases for users and groups, as most internal info is distributed via e-mail. We have an anonymous ftp site and a Web site for exchange of data and information with the outside world as well. We've been on the Internet for more than 10 years. All file systems are backed up once per week, with the exception of a 20-GB Falcon RAID array, which is backed up only once per month. Nightly incrementals are run on file systems that change often or are critical.