Blood of Dragons is the only author-approved MUSH based on George R.R. Martin's A Song of Ice and Fire. Play the Game of Thrones and become a part of the history of the Seven Kingdoms:
There is a lot of information on the website, and much of it is reference material that does not have to be read right away. However, there are some files that most likely will be needed in order to successfully select and request a character, get through CharGen and start roleplaying.
The Westeros network consists of several different sites, including a forum and a wiki, for all your A Song of Ice and Fire needs.