set up a blog Monday night to try and separate fact from fiction as far as the photos of Sandy's damage were concerned -- a blog that Madrigal called a "Insta-Snopes," as a tribute to the veteran rumor-debunking site Snopes.com. For each photo, the team tried to find the original source, or at least enough information about the shot to determine whether it was real or fake. In some cases, like the stranded carousel in Dumbo, the picture seemed almost too good to be true and yet turned out to be real . And the site put large "real" and "fake" logos on each, so that if they were shared it would be obvious what they were. As John Hermann of BuzzFeed pointed out in a post on his Tumblr blog (since BuzzFeed was still down due to the power outage), it's easy to focus on the fake news that gets circulated on Twitter during such events, but there is just as much reason to be optimistic about the speed with which it gets corrected. Some of those who saw the original fake report may not see the correction -- and Craig Silverman of Regret The Error has noted that the original tweet often travels much farther than any subsequent update -- but the fact is that it occurs, and often faster than mainstream news gets corrected. Twitter as a "self-cleaning oven" New Yorker writer Sasha Frere-Jones has described Twitter as a "self-cleaning oven" because of the way that it