 Martin's official fan club is the "Brotherhood Without Banners", which has a regular posting board at the Forum of the website westeros.org, which is focused on his "A Song of Ice and Fire" fantasy series.At the annual World Science Fiction Convention every year, the Brotherhood Without Banners hosts a large, on-going hospitality suite that is open to all members of the Worldcon.Martin has been criticized by some of his readers for the long periods between books in the "A Song of Ice and Fire" series, notably the six-year gap between the fourth volume, "A Feast for Crows" (2005), and the fifth volume, "A Dance with Dragons" (2011).