As any good reader of the genre knows, George R. R. Martin is one of the biggest names in fantasy.  His A Song of Ice and Fire series has pretty much set the standard for mature, well-written epic fantasy in recent years.  The first three books in the series, A Game of Thrones, A Clash of Kings, and A Storm of Swords, respectively, were published precisely two years apart starting in 1996.  Following the 2000 publication of Swords, however, everything slowed down.  The fourth volume, A Feast for Crows, did not appear until 2005.  Now, in 2008, the prospective publication date of A Dance with Dragons, the series' fifth book, remains tentative at best.  So the question remains: what happened to Dragons and, perhaps more importantly, what is going on with Martin's writing process?  More after the break.