Wireless Network Watcher - Show who is connected to your wireless network.BluetoothView - Monitor the Bluetooth activity around you.SmartSniff: TCP/IP Sniffer - Capture TCP/IP packets on your network adapter and view the captured data as sequence of conversations between clients and servers.
CurrPorts: TCP/IP Connections Viewer - Freeware tool that displays the list of all currently opened TCP and UDP ports on your local computer.