[Air-L] Definition of on-line community through homophily

[Semenov Alexander]

Hello, everybody.
I'm looking for papers, that define on-line communities through common
itnerests.
My idea is to prove, that many so-called communities in LiveJournals are not
such, because there is too few discussions and other kind of interaction. So
that joining such a community is mostly a demonstration of taste and part of
self-presentation in their profiles.
In order to prove that I want to run a PCA on the data from one of such
communities like in Paolilo, Wright and Mercure's article (
http://www.scribd.com/doc/353326/The-Social-Semantics-of-LiveJournal-FOAF-Structure-and-Change-from-2004-to-2005).
Their data show that there is no correlation between interests and friends
and I understand it as lack of homophily. (Am I right?) So, that is my
working hypothesis I want to prove. That's why I need some sources.
I looked through Barry Wellman's works but he uses another approach.
-- 
Alexander Semenov.
MA student
Faculty of Sociology
Moscow School of Social and Economic Sciences (MSSES)
http://www.msses.ru/English/index.html

Graduate Student in Sociology at
State University - Higher School of Economics
http://www.hse.ru/eng