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:
The best way is, of course, to read the books. We prefer all players to have read at least A Game of Thrones.
But even if you have read all the books, keeping all the information about the series fresh in your mind is easier said than done. The Citadel is the section of Westeros where we have collected setting-related resources, such as the Concordance, which is a compilation of just about every little piece of setting information from the series made specifically with this MUSH in mind.
You can also find a lot of information about the setting in our wiki and at our forum. However, keep in mind that those sections contain a lot of spoilers and that not all that information there has been checked for accuracy by the Admin.
The Westeros network consists of several different sites, including a forum and a wiki, for all your A Song of Ice and Fire needs.