Snopes.com (http://www.snopes.com/computer/internet/webbeacons.asp)
reports this as "Undetermined". Yahoo
(http://info.yahoo.com/privacy/us/yahoo/details.html) states

Yahoo! uses web beacons
<http://info.yahoo.com/privacy/us/yahoo/webbeacons/> to access Yahoo!
cookies inside and outside our network of web sites and in connection
with Yahoo! products and services.

So if your really concerned, its a matter of clearing the cookies after
your web browsing.

Dennis
For I dipt into the future, far as human eye could see,
saw the Vision of the World, and all the wonder that would be.



thpets@... wrote:
>
> > This was posted at another Yahoo group to which I belong, so I am
> > sharing the information with you.
> >
> > If you belong to ANY Yahoo Groups - be aware that Yahoo is now
> > using "Web Beacons" to track every Yahoo Group user. It's similar to
> > cookies, but allows Yahoo to record every website and every group you
> > visit, even when you're not connected to Yahoo. Look at their updated
> > privacy statement at:
> >
> > http://info.yahoo.com/privacy/us/yahoo/details.html
> <http://info.yahoo.com/privacy/us/yahoo/details.html>
> >
> > About half-way down the page, in the section on *cookies*, you will
> > see a link that says *WEB BEACONS*:
> >
> > http://info.yahoo.com/privacy/us/yahoo/webbeacons/
> <http://info.yahoo.com/privacy/us/yahoo/webbeacons/>
> >
> > Click on the phrase "Web Beacons." On the page that opens, on the
> > left find a box entitled "Opt-Out."
> >
> > In that section find "opt-out of interest-matched advertising" link
> > that will let you "opt-out" of their snooping. Click it and then
> > click the opt-out button on the next page.
> >
> > Note that Yahoo's invasion of your privacy - and your ability to opt-
> > out of it - is not user-specific. It is MACHINE specific. That means
> > you will have to opt-out on every computer (and browser) you use.
> >
> > Please forward this to your other groups. You might complain, too,
> > but I'm not sure if anyone is listening.
>
>
>
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