scott wrote:
> 
> Google probably has such a database. If I turn on wifi on my phone, even
> without connecting to any access point, then it suddenly knows which
> great accuracy where I am (far better than using phone signal
> triangulation alone). I imagine it gathers this data from people who
> have GPS turned on at the same time as wifi and then cross-references
> the two. Now it wouldn't be impossible for Google to also store the IP
> address (and MAC?) of the internet-side of the access point if you are
> connected to it.

A story also tells that Google was accidentally scanning the SSID's
while shooting photos for Google Maps, plotting the WLAN's and routers
on the map.

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