Magnet Window Manager - Magnet Developers
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Stay for OS X - Keep windows in their place
NetVizura NetFlow Analyzer - NetFlow Analyzer is a solution for bandwidth monitoring and traffic analysis. It helps with traffic investigation, analysis and reporting
uBar - The Dock replacement for the Mac.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.