Tor.com's SONG OF ICE AND FIRE reread reaches the 'RW' chapter from A STORM OF SWORDS. By unplanned coincidence, this is the exact same chapter the TV series hits this weekend (so if you're watching the TV alone and wish to remain unspoiled, READ NO FURTHER).
The writer's responses seem fairly par for the course, and I think a very mild version of the responses we'll see Sunday evening and throughout the day on Monday. GRRM and the producers are going to have to go into hiding.
I had the distinct advantage of picking up A STORM OF SWORDS in its first week on sale in the UK (so the start of August, 2000) so met this moment completely unspoiled.