Facebook is soon going to launch a new feature called “Graph Search”. With Graph Search, you can look up anything shared with you on Facebook, and others can find stuff you’ve shared with them, including content set to Public. That means different people see different results.
You can find people based on things they’ve shared with you, including their interests and profile info. You’ll see results for friends who share their city with you, people whose city is set to Public, and suggested results based on info shared with you.
You can find photos you and your friends have posted or been tagged in.
Others will see any photos they can see on Facebook, including photos hidden from timeline.
Discover things like restaurants and music through your friends and connections.
And for all those concerned by about your privacy , Check this video out.