Both Google and Facebook have announced plans to go after the revenue of fake news sites, kicking the hoaxers off their ad networks in an attempt to prevent misleading the public from being profitable. Google moved first, announcing on Monday a policy update that restricts its ads from being placed on fake news sites.

Google is "committed" to the UK and plans to extend its London headquarters at King's Cross, despite the country's decision to leave the European Union. Speaking on his first visit to the UK as the technology giant's chief executive, Sundar Pichai said Google plans to build a new 10-storey, 650,000-square-foot building alongside its new complex in Pancras Square.

One in three Internet users between the ages of 12 and 15 say they saw "hate speech" online in the past year, according to Ofcom's latest survey of children's media habits. It is the first time the UK regulator has posed a question about the topic in its annual study. The NSPCC charity said the finding was "very worrying," adding that such posts should not be tolerated.

Twitter has added new ways to fight harassment and hate speech on the social network by allowing users to block trolls that use abusive language. Users will be able to mute words, phrases and emoji from their notifications -- allowing them to remove racist slurs or swear words and can now mute entire conversations that they do not wish to be a part of.

WhatsApp has introduced a new feature that is likely to strike fear into the hearts of its competitors: video calling. After months in the beta stage, the Facebook-owned tech giant rolled out the update yesterday to its more than one billion monthly users.

Joint London's creative shows two old friends, an imam and a vicar, sharing a cup of tea and discovering a mutual problem of dodgy knees. Each decides to get the other exactly the same present -- a couple of knee supports that will allow both to continue praying as usual. The ad will run during tonight's Coronation Street on ITV in the UK.

J. Walter Thompson has landed a new business coup, earning the digital and content business for Unilever's Lux globally for the first time, despite a 91-year relationship with the brand. The agency has held a relationship with Lux, or Caress in the U.S. ever since its inception in 1925, but will now also be the digital and content agency of record globally, led by its office in Singapore.

Pret A Manger is taking an alternative approach to Christmas marketing as it eschews a big-budget TV ad and focuses on gifting to instead tell the story of its apprenticeship scheme, which provides training and real jobs for the homeless. The campaign, called "Opening doors," marks the first time the high street food chain has invited a filmmaker to document the scheme.

Anthony McPartlin and Declan Donnelly have signed a new three-year "golden handcuffs" deal with ITV believed to be worth GBP30m. The duo, who front some of ITV's biggest shows including I'm a Celebrity ... Get Me Out Of Here, Britain's Got Talent and Saturday Night Takeaway, have secured about a 20% increase over the value of their last three-year deal.

Mary Berry has been given her second show on the BBC, just weeks after saying she would remain when The Great British Bake Off moves to Channel 4. Mary Berry's Everyday on BBC2 will see the Bake Off judge whip up quick dishes and family favourites.