GroupM has appointed Kelly Clark as global chief executive, as global president Dominic Proctor steps down. Proctor, who has run Group M globally since 2012, will continue to work for GroupM on strategic projects. He has been with the company since 1979 when he joined the media department of J Walter Thompson.

Instagram has doubled its advertiser base in the last six months to more than 500,000 advertisers, with the top five verticals being consumer packaged goods, e-commerce, retail, entertainment and technology. The platform also said that more than 1.5 million businesses have converted to a business profile since it introduced Business Tools just two months ago.

Unilever has centralised its global and local marketing functions into a single team to ensure that its marketers are better equipped in today's "super-connected" consumer landscape. Under the changes, local "brand builders" at Unilever -- which owns brands including Persil and Lynx -- will report directly to "brand developer," the global marketers in charge of brand positioning and strategy.

YouTube has launched a scheme to encourage users to moderate content on the Web site. It will reward so-called Heroes for reporting videos and comments they believe violate community guidelines. YouTube already allows people to report abusive or offensive content found on the site. But now they will be able to earn rewards and some critics say that will encourage "snitching."

Business in the Community is calling on the marketing industry to help bring together businesses across the UK to turn around the decline of the high street while tackling a range of issues that are essential to creating a more fair society and a more sustainable future. In recent years Britain's high streets have struggled to deal with a steady decline in footfall as more people turn to online shopping.

Six in ten Internet of Things devices don't properly tell customers how their personal information is being used, an international study has found. The study, by 25 data protection regulators around the world, looked at devices like smart electricity meters, thermostats and smartwatches, considering how well companies communicate privacy matters to their customers.

McLaren has denied it is in acquisition talks with Apple after claims the iPhone maker was preparing a billion-pound bid for the British supercar manufacturer. The Woking-based company said there were no discussions over a sale or investment from Apple. It followed reports that the two companies had been in discussions for months.

You know what they say: there are no exhaust fumes without combustion. Well, no-one says that. But you get my drift -- the reports that Apple has been considering a $1.5bn (GBP1.2bn) acquisition (or at least significant investment) in British car maker McLaren have thus far been played down by both parties. But there are several compelling reasons to take the reports seriously.

First Direct has topped KPMG Nunwood's 2016 UK Customer Experience Excellence ranking, reclaiming the title it lost to handmade cosmetics brand Lush in 2015. The cosmetics company drops into third place behind retailer John Lewis in the top 100 list, which is based on 10,000 UK consumer brand opinions across a variety of metrics including personalisation, integrity and empathy.

Netflix defines the hooked episode as the one when 70% of viewers who watched the episode go on to complete Season One of the same series. It turns out that even looking across so many countries, people get hooked on the same episodes and shows with similar themes (mysteries, young love, family drama, crime, and, of course, dogs).