http://www.sffworld.com/forums/ This is a great Fantasy / SciFi book forum, Martin has his own section here. Going back and reading all the info posted there makes me want to read this series again, but I've got others to read in the mean time. I just wish Martin would write FASTER....
Actually, think of A Feast For Crows and A Dance With Dragons to be one book. Both books contain only half of the characters, so they are both 1/2 part of the story. I didn't like the book as much as the first 3, but that could be due to only get 1/2 of the picture, as well as myself...