Welcome to the bar! *twirls you* Sounds good, adding this to my reading list, and will look forward to your winter offering :D No worries if you missed joining up for the actual exchance, we take all wintery wonderfulness!

Pssst, it's the fanwork:immediate fall-out tag. Admitedly not our clearest tag ever, sorry :S

On posting to livejournal, people generally put the title of the fic, the author - so you, the rating and any warnings/triggers (so people know not to go near it if it's going to hurt them), a summary, and maybe an author note. You can add other things, like the pairing, characters, recipient if it's for an exchange, it depends. But that's generally how it goes. It's not really an issue if you're linking to it on another site, because places like AO3 and ff.net have that information anyway, but it can advertise your fic a bit. It's more important if you're linking to somewhere that just has your fic and none of that information. But yeah, hope that helps! You have most of that info anyway :) (Although you friends-locked it to comm members only, if you didn't mean to do that.)