I belong to a few Yahoo groups (FreeCycle, Clever Homemaker, Sunbeams Group, etc) and this was posted on the Clever Homemaker Yahoo group... I thought I'd pass it along. It kind of freaks me out that this is legal! Geez, Yahoo!! Makes me wanna "opt out" of being involved with anything Yahoo-related! Do yourself a favor and take the time to "opt out" of this disturbing practice of Yahoo's of following you around the web using "web beacons."
"As part of our continuing efforts to serve our list-members we will pass along any general Yahoo Groups-related announcements that are of relevance to all of you such as the one below:
Yahoo is Tracking Group Members
If you belong to ANY Yahoo Group - be aware that Yahoo is now using "Web Beacons" to track every Yahoo Group USER/MEMBER. 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
About half-way down the page, in the section on *cookies*, you will see a link that says *WEB BEACONS*.
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. I remember when they signed all users up to get spam and we had to opt out of that a few years ago--- and probably still do.