Groupon (GRPN) fired an employee who threatened to orchestrate a campaign of negative Yelp (YELP) reviews against a San Francisco restaurant, according to Jason Del Rey. [AllThingsD]
Kevin Roose charts the rise of the minimalist sex app. [New York]
Louise Lee interviews the first employees at Google (GOOG), Amazon (AMZN), and Subway. [Wall Street Journal]
Plenty of startups are angling to process credit-card payments for small business owners, but only Square has succeeded in taking business from Paypal (EBAY) and other incumbents, writes Olga Kharif. [Bloomberg News]
Apple (AAPL) cofounder Steve Wozniak says that there’s a lot wrong with the portrayal of the company’s early years in Ashton Kutcher’s new movie, Jobs (video). [Bloomberg TV]
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