del_c, after holyoutlaw mentioned http://www.livejournal.com/birthdays.bmlThe following pairs (in one case, triples) of people on my friends lists have birthdays which coincide:
moonbeanz and loneraven, a fellow Christian and a fellow slash writer.wag_9393 and hddod, two SF fans, both geeks.aamanda and mrhedgehog, a psychic poet and a seller of SF.whotheheckami and fattyc, two gentlemen of substance.del_c and jamesb, Two SF fans.blufive, ninneviane and beermat, a programmer, a naughty girl, and a geek.katiemariie and sand_l, a slash writer (again!) and a teacher.missfairchild and chazza, journalist and geologist.purplecthulhu and peteyoung, two SF fans, both of whom look after things in the sky.cardboard_dawn and deferenz, a fake student and an accountant.dmw and maryread, two more SF fans.Edit: to correct the error in
mrhedgehog's description, as notified by suaveswede.Further edit: Firstly to note that I've not listed cases where two journals are run by the same person -- there are several instances of this, the most obvious being
_jamez_ and _dreamyjamez_. Secondly to note that I've not listed molesworth and long-haired fishlifter because the latter's journal is used by high-heeled fishlifter instead, and doesn't have a birthday listed. 