[ILUG] Advertising in GMail

[Sonic]

On Mon, 20 Nov 2006 14:30:27 +0000, Kae Verens <kae at webworks.ie> wrote:
> Sonic wrote:
>>> Google can of course identify you through your cookies, unless you
>>> disable them.
>>
>> As far as I am aware, only the domain which sets a cookie can read a
> cookie. So I'm assuming you are talking about the cookies set by Gmail
> itself. Am I wrong?
> 
> not quite true.
> 
> iirc, you can set cookies to be second-level-domain-wide, meaning that a
> cookie seet on blah.google.com is visible on foo.google.com

Ah yes, I forgot about that. This would of course mean that cookies set from search results could be used.

> 
> there are many other ways of doing it:
> 1.  an invisible <img> loading up the cookie-holding site, which informs
> said
> site what the parent's address is (something like <img
> src="http://foo.google.com/?parentAddr=http://blah.google.com"
> style="display:none" />)

That's very interesting. Thanks for the info Kae.

> 2.  javascript...
> 3.  other ways...

Cheers,

Sonic