here's what i am seeing for the other three:
http://memesounds.com/quikpix_public/connect-section-of-customize.png
the drop downs each only have one selection -- and they just work "out of the box" so to speak.
so, i must have configured them somewhere while using a previous theme.
using the previous theme, i actually recall having more .... google+ was one of them in my footer, so, i'm guessing that spun has actually limited the number of links i can use ... and that's why i tried to add what i did in the spun footer.