Twitter's Dorsey Tweets His Resignation

Twitter founder Jack Dorsey has resigned, he tweeted Monday. Chief Technology Officer Parag Agrawal replaced him Monday as CEO, and Salesforce President Bret Taylor will chair the board, Dorsey said in an attached email to staff. Dorsey will stay on the board through his term ending in May, he said. Agrawal tweeted, “The world is watching us right now, even more than they have before.” Taylor also tweeted thanks. Twitter's stock closed 2.7% lower Monday at $45.78.