Dick Costolo
#RIPTwitter: 6 Lessons for Every Startup
Just a couple of years ago, everyone though Twitter would be the next Facebook. Then everything went to hell.
What Twitter's Former CEO Is Working On Now
Dick Costolo, who left the social-media company last summer, is helping to build something new.
Twitter: What Went Wrong
Twitter shows that you might have a great product and platform, but you still need to manage it right.
Where Did Twitter's Dick Costolo Go Wrong?
Employees loved him. The board loved him. He charmed the media, and even Wall Street, for a brief honeymoon. Why did investors turn on Twitter's CEO?
Dick Costolo Out as CEO of Twitter
Co-founder Jack Dorsey will temporarily replace him as the company searches for a new chief executive.
8 of the Greatest Commencement Quotes From Business Leaders
Who couldn't use a shot of inspiration and wisdom at graduation -- or all the time? These eight business leaders brought some serious game to their commencement speeches.
Twitter's Stock Falls on Weak Demand for Direct Response Ads
User growth also was slower than hoped for.
Twitter Founder: We Hired Dick Costolo Because He's Funny
Biz Stone says humor is so important for a business leader because it 'is kind of a secret delivery mechanism of truth.'
Twitter Is Bleeding Users Because 'We Suck at Dealing With Abuse and Trolls'
Ahead of an earnings call today, Twitter's CEO took personal responsibility for rampant trolling on the platform in a leaked memo.
Twitter's Jack Dorsey Defends CEO Dick Costolo in Massive Tweetstorm
'There isn't a single person who has been thinking longer about Twitter than @dickc.'
POLL: Are We All Idiots? Or Is Twitter Really Difficult to Use?
To the surprise of many, some people find Twitter difficult to understand. Are hashtags really that confusing?
Investors Unnerved: Is Twitter Too Difficult to Use?
The social media company's stock plunges 20 percent on report of slow user growth.
Wearable Tech, Marissa Mayer, Entrepreneurs and Innovation: A CES 2014 Preview
A bird's eye view of what's set to take place at the big tech event in Las Vegas next week.
Twitter CEO Spars With Tech Entrepreneur Over Lack of Women on Board
After a New York Times story critiqued Twitter for having zero women on its board, the social network's CEO aired his opinions -- leading to a social media-infused grudge match.