Shares in Twitter have ended the day more than 12% lower after the company reported that its fourth-quarter losses had nearly doubled. The social networking service reported a loss of $167m (GBP133m) in the final three months of 2016, against $90m in the same period a year earlier. There were 319 million active users -- 4% up on a year earlier, but revenue from ads fell slightly to $638m.

Boots has tasked Ogilvy & Mather with creative duties in the UK a week after owner Walgreen Boots Alliance pooled all its global its marketing and media responsibilities into WPP. The appointment signals the end of the UK retailer's 13-year relationship with Mother.

Britvic's squash brand, Robinsons, is piloting home delivery service "Fruit Drop" in a bid to encourage UK consumers to drink more water. The scheme, inspired by vegetable box delivery services, will see participants receive a wooden crate monthly, containing three different one-litre bottles of Robinsons concentrate, and three 66-ml packs of the super-concentrated Squash'd.

Five people have been arrested, accused of selling set-top boxes modified to stream subscription football matches, television channels and films for free. The sale of so-called "fully loaded Kodi boxes" has been called a "top priority" by the Federation Against Copyright Theft (Fact). Fact said it believed the suspects had made in the region of GBP250,000 selling the devices online.

The campaign, which launched last year, wants to stop brands buying ads in the "Daily Mail," "The Sun" and the "Daily Express," but faces a struggle convincing marketers of the business case for the move. The campaign garnered a lot of attention towards the back end of last year, both among consumers and the press.

Major tech companies Facebook, Google and Snapchat were found to be where most media and marketing professionals would like to work next respectively, according to a new survey in the U.K.

Liverpool FC have appointed HTC's vice president of marketing and sponsorships as their new marketing director. Markus Breglec has taken on the newly created role at the Premier League club and will be tasked with creating strategies to drive growth, inspire innovation and foster collaboration.

This week, the Lego Group launched Lego Life, a social network for kids between the ages of five and 13 -- a concept many parents would find "alarming," according to Michael McNally, Lego's senior director of brand relations. To stop parents from panicking, McNally and Lego PR agency Flashpoint Public Relations made safety messaging about Lego Life a priority.

A top executive at Asda's parent company has pledged greater support to the chain's recovery efforts after admitting it was slow to respond to the challenge posed by discounters in the UK. His comments raised the prospect of US-based Walmart shielding Asda, to a certain extent, from the effects of the weaker pound since the EU referendum.

Proximity London has appointed BBDO Singapore's Joe Braithwaite as managing director. He replaces Gabrielle Ludzker, who was promoted to chief executive last year.