W3C home > Mailing lists > Public > public-tracking@w3.org > December 2011

RE: Issue-39: Tracking of Geographic Data

From: Kevin Smith <kevsmith@adobe.com>
Date: Tue, 20 Dec 2011 09:56:39 -0800
To: Jules Polonetsky <julespol@futureofprivacy.org>, "'Shane Wiley'" <wileys@yahoo-inc.com>, "'Aleecia M. McDonald'" <aleecia@aleecia.com>, "'Tracking Protection Working Group WG'" <public-tracking@w3.org>
Message-ID: <6E120BECD1FFF142BC26B61F4D994CF3064C6E4FD1@nambx07.corp.adobe.com>
I know we have talked about it a few times, but perhaps not in the context of geo, but I still favor the position that an ad server (or other 3rd party service) can use information collected in the current session to target you.

For instance, if I am visiting New York, I do not have a problem if I see Broadway ads while I am there.  I don't mind contextual ads.  If I am reading up on my favorite basketball team, I expect to see sports related ads.  Nor do I mind time-related ads.  I do not mind prioritization of office supplies over movie trailers at 2:00 in the afternoon because an ad server does not need to know anything about me to make this decision.

What may bother me is if I see Broadway ads once I have returned to Utah (meaning they are remembering all of my locations - assuming I have not in some other direct way indicated a preference for the theater), or if I see sports ads while booking a flight, or if the decision to show me office supplies vs movie trailers was based on watching my many locations and thereby determining if I am home or at work.

From: Jules Polonetsky [mailto:julespol@futureofprivacy.org]
Sent: Friday, December 16, 2011 8:31 AM
To: 'Shane Wiley'; 'Aleecia M. McDonald'; 'Tracking Protection Working Group WG'
Subject: RE: Issue-39: Tracking of Geographic Data

Cross site - don't label an IP address as likely to be home address vs likely to be work address, based on past logging of the IP at different times/locations.

Real time/single site - do recognize user is coming from IP address belonging to a company/during the day - likely to be at work.  (Staples ad prioritized over ad for movie trailer)

From: Shane Wiley [mailto:wileys@yahoo-inc.com]
Sent: Friday, December 16, 2011 9:33 AM
To: Aleecia M. McDonald; Tracking Protection Working Group WG
Subject: RE: Issue-39: Tracking of Geographic Data


The geo-location discussion was on the first day and fairly early in the event.  I believe the conversation has progressed significantly and as we narrow in on the "cross-site" element of "tracking" I'm struggling to see how geo-location fits into the "cross-site" model.  If the group feels that IP Address derived geo-location should not be used across sessions if the user has DNT activated, that makes sense to me but I'm not sure if geo granularity is important in this context (any geo vs. Zip4).

- Shane

From: Aleecia M. McDonald [mailto:aleecia@aleecia.com]<mailto:[mailto:aleecia@aleecia.com]>
Sent: Friday, December 16, 2011 2:05 AM
To: Tracking Protection Working Group WG
Subject: Re: Issue-39: Tracking of Geographic Data

Reminder: we had a fairly lengthy discussion about geoIP in the context of how identifying zip plus 4 is (about 12 households) and had a general sense that it is hard to claim there is no tracking if you can identify location that closely. I can pull the call minutes and/or prior email threads where Shane argues against zip plus 4 being ok if that is helpful context.


On Dec 15, 2011, at 8:15 PM, Amy Colando (LCA) wrote:

Is it perhaps the concept of across sites, over time? I think this is what Jeff is getting at too, when he talks about multiple data sources.

If ad network just uses the IP address that accompanies HTTP request to provide relevant content or ads, OK. If ad network remembers it in a profile it retain about you based on cross site activity, that is not OK, when DNT signal is sent (absent some other exception).


Sent from my Windows Phone
From: Karl Dubost
Sent: 12/15/2011 7:28 PM
To: Bjoern Hoehrmann
Cc: public-tracking@w3.org<mailto:public-tracking@w3.org>
Subject: Re: Issue-39:  Tracking of Geographic Data

Le 15 déc. 2011 à 21:45, Bjoern Hoehrmann a écrit :
>  I do not see the connection there to dnt and ad selection. You seemed to be saying that, if you have dnt enabled, you should not get ads based on where some ad-network thinks your IP-address belongs to geographically

nope. not what I meant. I'm trying to find a better way
to express the cross-data aggregation around IP geolocation.

Karl Dubost - http://dev.opera.com/
Developer Relations & Tools, Opera Software
Received on Tuesday, 20 December 2011 17:57:38 UTC

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