I recently (kind of) figured out Tumblr. Cousin Shelley's Fandoms. I post about old favorite fandoms and some awesome new ones like Teen Wolf, Sleepy Hollow, The Blacklist and Almost Human. Come on over and say hello!
My website's The Silver Stake. All the fan fiction there is also at the AO3 now.
I've had a LiveJournal account since 2004, the first thing I did when I got back into fandom after an absence of a couple of years, but I don't post much there anymore except new fan fiction. I tend to go for the Tumblr first. Nobody's around LJ these days, it seems.