Tesco, Sainsbury's Make Millions Off Loyalty Card Data: Times - Bloomberg

Tesco Plc and J Sainsbury’s Plc, two of the biggest UK supermarkets, make about £300 million ($376 million) a year from selling information about their customers’ shopping preferences, the Times reported.

Tesco, Sainsbury's Make Millions Off Loyalty Card Data: Times - Bloomberg

Supermarket loyalty cards 'not all they're cracked up to be', watchdog warns - North Wales Live

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The WIR: Vivendi Considers Spinning Off Havas, Channel 4 Unveils New Ad Formats, and Netflix Ad Sales to Reach $1 Billion Next Year - VideoWeek

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