I know songkick is pretty big in England. I recall them trying to get the word out in NYC about it a couple years back -- but not sure what happened there (maybe they were promoting shows or something). Their site used to be much more interactive (people could add posters, setlists, etc) and some of us put in way too many hours adding extras - then one day it was all gone.
At least some of their other stuff (concert listings/announcements) is still useful.