@Diablo
@Diablo refers to Blizzard's official Diablo twitter account, which can be viewed here.
The account went live in August 2009[1], and as of November 2010 it had posted over 600 tweets and had over 44,000 followers.
After a lot of initial skepticism over the utility of such a brief communication device, and some early misunderstandings[2] brought about by the short character limits, the service has become fairly well-accepted by the fans.
Bashiok and some other community managers handle the account, and though its activity is often sporadic, with nothing posted for a week or more, the account keeps up a fairly regular intercourse with fans, answering short questions with quick answers, owing to Twitter's 140 character per message limit.
Fansite Diii.net posts news items which quote every game-related tweet, usually adding additional info to flesh out the brief replies.