Job No. 1 for the new CEO: Revamp the stagnating microblogging service to make it more inviting for regular folks.
One of Twitter's co-founders has come back to help the troubled social-networking company. Seen as part artist, part visionary, the question facing Dorsey now is whether he can turn the company around.
Despite past differences, Williams says his relationship with the new chief executive is stronger than it has been "in years."
Jack Dorsey once again is officially at the helm of the company he co-founded in 2006.
From nuggets of entrepreneurial wisdom to insights on Twitter's genesis, Dorsey, just renamed CEO, has said some intriguing things over the years.
Twitter co-founder Jack Dorsey has been picked to lead the social-media company for a second time. CNET's Lexy Savvides explains what that means for Twitter users and the struggling company.
London's infamous serial killer to feature in upcoming DLC pack.
Jack Dorsey is now CEO of both Twitter and Square. Running one big company is tough. Now he has two.
Sony Pictures Entertainment releases a new trailer for its upcoming film "Goosebumps," based on the popular book series of the same name by R.L. Stine.
Vsauce host Michael Stevens talks with Chris Pratt and expert paleontologist Jack Horner about the science behind the hit blockbuster film "Jurassic World."