Item-Level discussions
In Aurea Social, an item-level discussion is actually a sphere devoted to that item, centered on that item's URL.
Each post in an item-level discussion contains within it a link to that sphere.
When the item being discussed is not a SharePoint object, but rather a non-SharePoint web page or URL, this link to the sphere brings up a page displaying the discussion sphere on the right, and an iframe containing the web page being discussed on the left, as pictured here:
Discussion sphere on the right and an iframe containing web page on the left