Zenith has downgraded its forecast for UK ad spend by 0.2 percentage points to 5.4%. It said growth began to slow before the UK voted to leave the European Union in June, and the result "is likely to further weaken growth over the next few years." In 2015, UK brands' ad spend grew 9.2%, and Zenith expects the growth to slow further to between 3% and 4% over the next two years.

Yahoo is launching its content marketing studio, Yahoo Storytellers, in the UK today. The studio launched in the U.S. in June. It makes use of Yahoo's editorial resources, data, native advertising and content marketing on Tumblr to offer services such as content consulting, video development and editorial content, influencer activations across social platforms, and partnership extensions.

Tubemogul is partnering with independent mobile location data company Factual to offer advertisers deterministic targeting beyond the walled gardens around the likes of Facebook and Google. The partnership revolves around Factual's Geopulse Proximity and Geopulse Audience tools, which are now available within Tubemogul's software platform.

The Marketing Society has named Gemma Greaves as its new CEO after current boss Hugh Burkitt decided to step down. Burkitt has been CEO of the society for the past 13 years, during which time he was responsible for the launch of its 'Manifesto for Marketing' and 'Marketing Leaders Programme' for aspiring marketing directors.

Short-term marketing tactics are increasingly taking precedence over long-term brand building, and whether it's a symptom or a cause, the tenure of marketers is also getting shorter, as is the length of agency relationships. Marketing Week's Salary Survey of UK marketers shows that 81% are planning to leave their post in the next three years and 39% aim to exit within the next 12 months.

McDonald's has wound up its youth-focused YouTube project Channel Us after it failed to reach enough consumers, its chief marketing officer Alistair Macrow has confirmed. Channel Us launched last summer to great fanfare, with Macrow calling it "a groundbreaking moment for McDonald's in the UK".

A little under a month after the announcement of its sale to Microsoft, LinkedIn has further bolstered its offering to advertisers with the announcement of conversion tracking capabilities to help brands better understand ROI from sponsored content and text ad campaigns on the professional network.

The idea is to provide a legal framework for brands dealing with the emerging, and occasionally murky, world of YouTube vloggers and other creators. The template contract has been drafted by ISBA with law company Lewis Silkin and input from agencies, creators and talent management companies.

The publisher of the Dutch edition of "Playboy" has won a court case to prevent a Web site in the Netherlands from linking to nude images taken for the magazine in a ruling that could have wider implications for how digital publishers operate. The European Court of Justice ruled that GS Media had violated the copyright on photographs of TV personality Britt Dekker.

Online accommodation site Airbnb is introducing a new policy to combat reports that black people are less likely to get rooms. The move includes reducing the prominence of photos, introducing new technology, and asking users to sign an anti-discrimination agreement. A study last year found that people with names that suggested they were black were discriminated against.