Another year, another slew of Facebook privacy changes. This year, the social networking giant affirmed that it can use member posts, photos and personal information to serve advertisements on the site. But perhaps worse, Facebook eliminated a key privacy feature that allows members to hide their profiles from other Facebook users that are not designated "friends." As a result, any Facebook member will be able to look up anyone's timeline and profile. Facebook said the change affected a "small percentage" of members but hasn't said specifically how many members used the search setting.