Beacon

Beacon: The Eye of Facebook
Facebook first took a beating when its Beacon service was ruining Christmas by broadcasting information about gifts Facebook users had just purchased to all of their Facebook friends. (December 2, 2007)

One Way to Completely Opt-out of Beacon: Delete Your Account
We blogged earlier about Facebook's annoying Beacon. (November 29, 2007)

Facebook's Beacon Shines Annoying Light on Consumer Purchases
Facebook's supposedly innovative new advertising feature called Beacon is quickly turning into a disaster for the popular social network. (November 28, 2007)