"With a link to the Yahoo privacy page, Jay Hipps pointed out the company's widespread use of web bugs (a.k.a. "web beacons"), not only in online advertising and web pages, but even (like spammers) within Yahoo email:

Yahoo!'s practice is to include web beacons in HTML-formatted email messages (messages that include graphics) that Yahoo!, or its agents, sends in order to determine which email messages were opened and to note whether a message was acted upon.
[See also: Marc Hedlund's Swearing Off (and at) My Yahoo, which talks about Yahoo's use of customer birthdates. -MacInTouch]

" On MacInTouch via News Is Free Those sneaky devils...I've signed up for MyWay.com...