Yahoo: (This is legit, all users are "opted-in" by default.)
"Web Beacons" -- be advised.
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 and change your setting at:
info.yahoo.com/privacy/us/yahoo/details.html
1. About half-way down the page, you will see a link that says *cookie*.
2. Click on this, then half way down the new page you will see a link *opt-out*
3. Click the *opt-out*
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.
