facebook allows tareting of page posts

[Rooftop]

https://www.facebook.com/help/352402648173466

You can now target you page posts based on location/gender/interests/other general profile stuff.  Wondering what impact this would have on edgerank: If you tightly target a post and get 100% engagement would this have the same benefit as a broadly targeted post with similar levels of interaction?  Might have a play with this today.