GFI LANguard Security Event Log Monitor Performs event log based Intrusion detection and network wide event log management. Archives & analyses event logs of all network machines and alerts you in real time to critical events.
NetScanG Do you know who is online? NetScanG does!
Subnetting Calculator.NET Calculate subnets for your networks quickly. Includes Key tools to help subnet.
Serverwatch Monitor your server and services from one gui
Vypress Messenger Peer-to-peer instant messaging and files transfering for LANs/WANs/intranets
NEWT Professional Network Inventory and Discovery tool capable of scanning over 100 items per machine.