Social networking website Facebook yet again succeeded in angering a large section of its 900 million privacy-conscious users over the weekend when it surreptitiously switched many of their profile e-mail addresses with a @facebook.com domain address.Many users who had e-mail addresses from Gmail, Yahoo or Hotmail, would have discovered on Monday that their profile now showed a @facebook.com address instead. While the option to revert to the external e-mail address exists, it requires tweaking of their profile information display settings. Users also have the option to hide the @facebook.com address.
