I lurk on the Guardian talkboards (in the U.K.) and just went there to see how the discussions are going.
It’s had a lot of input from American conservatives who’re providing balance to the discussion.
Got to say, even with that influence, I’m surprised it’s as balanced as it is given what you said.
Usually with the Guardian talkboards there’s one thread which focuses on the news story itself and you then get a proliferation of threads discussing particular aspects of it.
In this case, someone made the point at #7 in the original thread: “I’m no fan of Palin or the Tea Party, but let’s hold off on pointing fingers until we at least know *something* about the shooter other than male, late teens or early 20s.”
Barring the left wing and right wing trolls baiting each other as they do day in and day out, most of the contributors seemed to just be following the news as it came out, and stuck to that suggestion.
For the past day or so, the conversations have been focusing on discussing mental health issues, gun controls, reefer madness (following someone suggesting the shooter was a pot-head), comments made by the Sheriff indicating previous threats to Ms Giffords had been made, and an article from the Daily Kos from two days before the shooting.
It does appear that about 6 posters did point the finger at Sarah Palin and seem pretty insistent that the right wing is to blame, but I wouldn’t say they are reflecting the majority view.