Bill Keller has been, of late, an absentee Twitterer: his most recent tweet was posted on May 14. What’s up with the absence? Editor and Publisher’s Joe Stupp e-mailed the NYT editor to find out, and got the following response from Keller:

“It became a chore, like flossing. Of course, I intend to floss, and I intend to get more serious about Twitter. One of these days.”