Alright, as some of you may know I'm a HUGE fan of Batman's arch-nemesis "The Joker", and Heath's portryal of him in "The Dark Knight" was impressive to say the least. Unfourtanetly Heath passed on which could cause some trouble if they ever wanted Joker to return in the movies again the way he was. A few months back I found this guy on youtube who did an amazing impression of The Joker, and he posts videos of "The Joker" post "The Dark Knight" when he's in Arkham Asylum.
Anyone who's a fan of The Joker should take their time to watch some of these videos!
http://www.youtube.com/TheJokerBlogs