Over at Crooked Timber, Eszter Hargittai has a post on using social network modeling to make movie, music and book recommendations. I am particularly intrigued by social network modeling, especially the work of Duncan Watts. In addition to analyses of tastes, relationships, organizational structure, etc., I think it may be useful in thinking about institutional change in electric power regulation. But my ideas are still a bit embryonic.
I will try the music links she recommends, and I expect that they will give me better results than the lists that accompany artist listings at allmusic.
Any other recommendations of applications of social network theory to tastes?