Elon Musk has already tweeted his way into a board seat at Twitter. Just a day after buying up 9.2% of the social media site’s stock, Musk has been named to Twitter’s board of directors. “Through conversations with Elon in recent weeks, it became clear to us that he would bring great value to our Board,” CEO Parag Agrawal tweeted Tuesday morning. “He’s both a passionate believer and intense critic of the service which is exactly what we need on Twitter, and in the boardroom, to make us stronger in the long-term.” Musk, in response, said he was “looking forward to working… to make significant…