I also created despatches_feed which is a feed of the main newsletter LJ comm for Age of Sail fandom. Not sure whether that's appropriate to mention? Since it's a moderated comm with only official posts, it's almost as useful as a feed as in its original form.

metafandom exists but isn't up and running yet.

thefourthvine is primarily a recs journal and has started crossposting. Do you want to list that sort of thing?