Alice Marwick has recently put together a topical, semi-annotated bibliography of academic research on LiveJournal: LiveJournal Academic Research Bibliography. She has tried to surface all known scholarly research concerning LiveJournal. This bibliography was commissioned by LiveJournal (where I’m on the advisory board and played a role in making this happen). This is a great resource for all scholars who are interested in LJ-related issues.
(Note: this complements the bibliography I maintain of research on social network sites.)