Game of Thrones is a site for the HBO-series based on George R.R. Martin's A Song of Ice and Fire.
New to the series? Read our spoiler-free review of A Game of Thrones.
HBO has just unveiled the character bio page at their official site, featuring short blurbs about each characters, some new character photos, and (best of all) short, 1-2 minute character feature videos. These seem to have been some of the Fancast exclusives, and are now becoming available more widely via the HBO site. Below are embeds of the currently available videos, covering King Robert, Ser Jaime, Tyrion, Jon Snow, and Bran.
The Westeros network consists of several different sites, including a forum and a wiki, for all your A Song of Ice and Fire needs.