I woud suggest having 2 different pop-ups (split the current pop-up into 2 different pop-ups):
- one for the numbered post #123 permalink.
- one link named "Share" which opens the popup for the "Share Services".
The current pop-up might confuse the average user a bit as he might not understand what a "Permalink" is and the user might also not understand the URL given in the top-box within that popup. The average user might get stucked as he does not understand what to do with that URL in the top-box.
I think the Permalink is merely for more experienced internet-users, whereby "Share" is understandable by the average internet-user.