Facebook appears to be testing a new feature to make users aware of their social reader privacy settings before they click on links that could end up being shared on their profiles.
Articles from social readers like the Huffington Post, Digg, ESPN, Yahoo News and others now include an icon to designate whether users’ friends will be able to see that they read the article. A green circle with a check mark means social reader activity is on. A grey circle with a check mark means a user’s activity will be private. When privacy settings are clear upfront, users are more likely to feel comfortable using social readers and other Open Graph application.