http://www.netstumbler.com will find any wifi networks in range. It won't crack them if they're using WEP. Gotta get
airsnort
to crack that. Airsnort only works on *nix last time I checked. May be ported now though.
Great software to have if you have some kind of industrial/business center around town. Half the companies have networks wide open to do whatever you want
Same thing goes for home networks with wireless routers. Most people just plug them in with default settings. Know the local ISP and you know the outgoing email server
