[LINK] Introducing geoloc

[Jon Seymour]

On Mon, Jan 17, 2011 at 11:07 PM, Jon Seymour <jon.seymour at gmail.com> wrote:
> On Mon, Jan 17, 2011 at 8:33 PM, Paul Brooks
> <pbrooks-link at layer10.com.au> wrote:
>> On 14/01/2011 1:59 PM, Jon Seymour wrote:
>
>
> I was surprised that Google had updated the devices in a relatively
> short period of time. For example, on the first map, there
> is a WiFi device in Dampier, WA whose location changed slightly over
> that period. I haven't worked out how this happened, but it
> strikes me unlikely that Google happened to have street view car way
> out in Dampier in the last two weeks. If it wasn't a Google street
> view car that provided this location adjustment, one wonders on what
> basis the location was updated.
>


Given that it appears that Google announced last May that they had
removed WiFi scanning equipment from their Street View
cars (http://googleblog.blogspot.com/2010/05/wifi-data-collection-update.html),
I think it is an open question about
how they are keeping their MAC address database current.

My experiment to seed their MAC location database with some MAC
addresses whose availability I had tight control over has thus far
failed to produce a hit. Either the availability window for each
address was too short, or some other explanation applies.

jon.