Unsure why link is appearing.

Have a large network of multi sites. On http://www.counselingstlouis.org, I wanted blog posts I syndicate from psychcentral.org to appear with a link at the bottom that says, "This content was originally featured on the Psych Central Blog." as here: "http://counselingstlouis.org/2013/01/12/usa-today-publishes-harmful-prejudice-misinformation-about-people-with-mental-health-concerns"

I rigged that up nicely the other day and now have no recollection of how I made that happen. Unfortunately, now "This content was originally featured on the Psych Central Blog." is showing on all of my multisite posts.

Can someone:

a) Help me remember what I did to get it there in the 1st place. :slight_smile:
b) Help me find a way to leave the phrase on counselingstlouis.org posts and nowhere else.

Thanks! Noob questions, i know.