Sniff out nearby Wi-Fi
iStumbler is a free, Snow-Leopard-only tool that helps you sniff out nearby Wi-Fi networks, even if you're just stumbling around with an open laptop.
iStumbler has a clean and helpful interface: on launch, it automatically displays all networks in your vicinity in a chart that shows each network's name, mode, protocol (e.g., 802.11n vs. 802.11g), security (anything from Open to WEP to BSS), noise, channel, frequency, MAC address, vendor (e.g., Apple or Netgear), sample, geographic location, and last update time. You can move these columns around and sort the networks any which way you … Read more
