@Fli
Hey I know the last pics were ambigious but this one will nail it for sure 
@Khattak
You are right and wrong. They are attached in the middle and at the end to the control arm. But the bolt you were mentioning is connecting the sway bar to the control arms not the leaf spring. Remember it is composite leaf spring and it would not look like your regular leaf spring found on other vehicles.
As for the website, well they pics come from a varaity of sites all you need to do is make a corvette search. I hope the mystery and the ambiguity are put to rest. 
In this pic the leaf spring is shown with the exhausts removed, just to have a better pic.

See if you can point out the leaf spring in this cutout pic where the C6 is turning right and the left side is loaded and jetting out.
