Twitter CEO resigns: Where Dick Costolo went wrong | Fortune
Twitter CEO Dick Costolo Announces Resignation | Time
Dick Costolo Explains Why He Shut Down Chorus, His Fitness Startup
Dick Costolo Channels His Fitness Obsession Into a Startup | Inc.com
Ex-Twitter CEO in hot water for controversial comments
Twitter CEO Dick Costolo Stepping Down – The Hollywood Reporter
4. Dick Costolo | MediaGuardian 100 2013 | The Guardian
Twitter CEO Dick Costolo's Art Connections—artnet News
Twitter CEO Dick Costolo, on How Improv Comedy Made Him a Better Leader
Ex Twitter CEO Dick Costolo's advice for young people
Departing Twitter CEO Dick Costolo: 'There are many different ways to be successful' – The Mercury News
Dick Costolo: Twitter could remain independent
Twitter's CEO: How I Stay Focused Under Fire | Inc.com
dick costolo (@dickc) / Twitter
Twitter (TWTR) Rises as CEO Dick Costolo Steps Down, Jack Dorsey Takes Over - TheStreet
Dick Costolo Story - Bio, Facts, Networth, Family, Auto, Home | Famous CEOs | SuccessStory
Dick Costolo Is Said to Plan Departure From Twitter's Board - The New York Times
Former Twitter CEO Dick Costolo Got Hacked | Fortune
Dick Costolo - MCI Innsbruck
File:Dick Costolo (8000963921).jpg - Wikimedia Commons
Dick Costolo - IMDb
