Social network site providers continue to make social data more public and visible to third-parties.
Facebook Further Reduces Your Control Over Personal Information
How times have changed.
Today, Facebook removed its users' ability to control who can see their own interests and personal information. Certain parts of users' profiles, "including your current city, hometown, education and work, and likes and interests" will now be transformed into "connections," meaning that they will be shared publicly. If you don't want these parts of your profile to be made public, your only option is to delete them.