Cracking Wifi
Identify Available Wifi
Tool
NetStumber - a tool for Windows that facilitates detection of Wireless LANs using 802.11b , 802.11a and 802.11g WLAN standards.
Kismet - a network detector, packet sniffer and intrusion detection system for 802.11 wireless LANS. The program runs under Linux, FreeBSD, NetBSD, OpenBSD, and Mac OS X.
KisMac - KisMAC is a wireless network discovery tool for Mac OS X. It has a wide range of features, similar to those of Kismet (its Linux/BSD namesake).