The Ticker: Twitter Sinks; Costolo Defends; NYC I.T.; MTV PSA; Apple vs. Samsung Again

The Wall Street Journal: Twitter Stock Sinks Despite Growth in Revenue, Users

Re/code: Twitter and TV Working Just Fine, Says Twitter

Forbes: 20 New Yorkers Over 50 Who Get I.T.

BuzzFeed: MTV Launches New Campaign to Address Race, Gender, LGBT Issues

The New York Times: Apple and Samsung Cite, and Rebut, Internal Memos