At Readercon on Sunday (which happened to be the 17th of Tammuz, a Jewish fast day), writer Leah Cypess gathered a small group of Jewish speculative fiction writers together. We sat in the Con Suite, not eating, and discussed the issues involved in writing science fiction and fantasy stories that have a Jewish element or theme to them.
Although there already exist groups devoted to the discussion of Jewish science fiction (the group at http://groups.yahoo.com/group/jewishSF/ comes to mind), as far as we could tell there was no group specifically devoted to Jewish science fiction from the perspective of the writer. Therefore, Leah decided that we should form such a group, and setting up an email discussion group on yahoo is the start.
So, if you're a writer who is interested in writing Jewish speculative fiction, feel free to join. Our grandiose plans include a possible small convention devoted to Jewish speculative fiction, and the question of how to get more markets to publish such fiction.
The group can be found at http://groups.yahoo.com/group/jewishSpecFic/ . Our one-line description: Jewish Speculative Fiction Writers is for writers who are interested in working on fiction at the intersection of speculative fiction and Jewish themes. A LiveJournal Community for the same purpose is at jewishspecfic.