Senior MPs complain that only three of 42 previously made recommendations have been accepted outright by the government, while four have been rejected.
Mary Keane-Dawson, who leaves at the end of the year, to be replaced by Oliver Southgate.
It is estimated that the social network already lost three million European users in the second quarter.
Giffgaff has apologised and pulled its Halloween campaign following complaints that its ad about an orphan girl was offensive and traumatising for vulnerable people.
Agency has also hired P&G's Flora Kessler to join the strategy department.
Production of new children's content has declined considerably in the past decade, resulting in a significant amount of programming being repeats.
Avocet uses machine-learning in its planning analysis and calls itself an 'innovation DSP'.
The short story of an orphan girl launches online today and will be followed by TV edits.
Jaguar could have done so much more to promote its first all-electric SUV.
WPP will create integrated campaigns and content encompassing advertising, digital, shopper activation and PR.
Interpublic agency is tasked with creating innovative digital services.
Third-quarter study also reveals that marketing budget growth has slowed to its lowest rate in three years.
Spotify's foray into horror through advertising has been banned by the Advertising Standards Authority for being "unduly distressing" and irresponsibly targeting children online.
Why didn't Pokémon Go begin an AR revolution in marketing?
Facebook is demanding that UK political advertisers verify their identity on its platform as part of a range of transparency measures announced today.
Hain Celestial, the owner of New Covent Garden Soup Co and Tilda Rice, has appointed Havas London to lead strategic and creative work across four of its UK brands.
Sophie Lewis, who joined Y&R London as chief strategy officer only days before its surprise merger with VML, has been confirmed as chief strategy officer at VMLY&R London.
The Co-operative Bank has appointed MullenLowe London as its first ad agency since it was spun off from The Co-operative Group last year.
Les Binet and Peter Field have revealed a formula that marketers can use to calculate the optimum ratio of brand building to sales activation.
Digital spend in the UK rose by 15% to £6.4bn in the first half of 2018, fuelled mostly by a surge in video ads, according to the latest IAB data.