Hi everybody--Ju-Pong here. (:
I just came across these websites and just need to share them with you. Exchange Values is a fascinating social sculpture project in which Shelly Sacks stitched together banana "skins", traced the skins back to the farmers who grew the bananas and recorded their voices.
From that website, under links you can find a link to social-sculpture.org (or you can just go to social-sculpture.org/), which is the website for a program at Oxford Brookes.
Following this thread of Beuys' idea of social sculpture, I found this site: Center for Social Sculpture, The tree planting link tells the story of Beuys' 7000 Oaks project begun at Documenta 7.