I had a look at the new knol offering from Google and found this: Impact of Social Network Analysis Theory In Strengthening Diversity In Modern Organizations. There is no biography of the author, Osman Masahudu Gunu, but he is described as an accountant in the US and has contributed several knols.
I was lucky enough to get myself introduced very briefly to Seth Earley at the Essentials of Metadata and Taxonomy conference in March. He suggested I look into Social Network Theory in relation to taxonomies, as a knowledge organisation tool aimed at a specific group. This knol seemed like a good bullet point introduction with some useful references.