taken from GD
http://thegothamtimes.com
http://www.thehahahatimes.com Jokers Site
http://wearetheanswer.org/ Report a corrupt cop
http://gothampolice.com/ GPD website
http://gothamnationalbank.com/ The Gotham bank
http://rememberinggina.org/ Some Gotham person who died
http://gothamcityhall.com/ Is under construction

And another Joker email:
humanresources@whysoserious.com

they should "hack" gothamist.com one day.