Pjman - 5:07 pm on Jan 10, 2013 (gmt 0)

By most comments and my own understanding, I think the simple answer is; if you feel it will engage your audience to a higher degree; it is worth a site-wide link.

Otherwise, it is just a distraction that may turn some people off; if they have no social intents with your site.

Does anyone concur with that?