huge portal site, across disciplines; "...other terms are sometimes used in place of place, such as home, dwelling, milieu, territory, and of course, space. None of these, though, are necessarily equivalent to the notion of place."
bibliography, updated as of aug 06, that includes pages for: Online Articles and Journals: Books & Print Articles: Novels: Homepages: Mirrored Pages: Mailinglists: General Resources: Game Research: MUD & MOO Resources
K. Avrachenkov, V. Dobrynin, D. Nemirovsky, S. Pham, and E. Smirnova. SIGIR '08: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, page 873--874. New York, NY, USA, ACM, (2008)
L. Backstrom, and J. Leskovec. Proceedings of the fourth ACM international conference on Web search and data mining, page 635--644. New York, NY, USA, ACM, (2011)