Wireless network sniffer

[Liviathan]

I was reading an article about WiFi and how some people have setup nodes in cities like in Seattle.
Anyone know of any software that will allow me to find open nodes.
I have setup a wireless network in my house and would be interested in expanding or seeing what I can find out there.

 

[thevillageinn]

check out netstumbler

Text

 

[n0cmonkey]

7h15 15 pr0b4bly 7h3 wr0n9 pl4c3 70 45k 7h15.