The hashtag #JeSuisParis, used to show solidarity with the French capital, marked Twitter's most talked-about moment of the year. The I am Paris hashtag and #PrayForParis were the most used on the microblogging site in 2015 after two terror attacks in the city in 10 months. This was followed by the Black Lives Matter movement and in both the US and Ireland this year, same-sex marriage was legalised nationally, and as a result #MarriageEquality appears third on Twitter's list.

Featuring "absolutely nothing," the ad -- which debuts on TV this weekend -- shows 30 seconds of a completely white set with just a voiceover. The voiceover promises the spot will feature no celebrities selling turkeys, no make-believe families around the Christmas table and no people dancing in supermarkets with silly Christmas hats. It does manage to squeeze in one little brand push, however -- "have a break, have a KitKat," it encourages.

The UK account was previously held by Starcom MediaVest Group but the contract came to an end. The agency decided not to re-pitch for the business. The company has been speaking with shops about its requirements, and agencies pitched for the account this week. In May Spotify launched a video offering to its service, which includes video clips and audio shows such as news and podcasts. As with its music offering, the player also suggests videos for the user.

Unilever has appointed Aline Santos as its new SVP of global marketing to replace Marc Mathieu, who left the company earlier this year. Santos has been with Unilever for 25 years and was previously global senior vice president of laundry. She was part of the Dove global brand team in 2002 when the Dove Beauty Theory was created, and more recently oversaw the 'Dirt is Good' campaign for Persil, OMO and Surf.

The hi-tech taxi firm Uber has claimed that no one should "bother" buying a car anymore, because it's easier just to call a cab. The controversial American company will launch a new service called UberPool in London at 4pm today, which will allow customers to save 25% on their fare by sharing their ride with strangers. But in a statement likely to anger the petrolheads of Britain, an Uber boss claimed its app was so good that it would discourage people from owning their own automobile.

Renault says it will soon be able to offer consumers the ability to test drive all its cars via virtual reality headsets as the car marque explores how new technology can "radically change" the dealership experience and boost sales, not just drive engagement or awareness. The car brand has launched an immersive campaign that utilises 360 video technology to give Facebook and YouTube users the chance to sit in the driver's seat of a racing car at the Renaultsport Clio Cup.

A little over a year since it relaunched Atlas, Facebook is pushing forward with the rollout of its ad server, which many see as a real contender to challenge Google's dominance of online advertising. It's now winning over almost two advertisers each week, according to Damian Burns, Atlas' head of sales, who spoke to The Drum about its efforts to accelerate uptake. The Atlas team has been bolstering its ranks, notably through the addition of fellow ex-Googlers.

Larger broadcasters and communications companies face bigger fines under new rules adopted by the regulator Ofcom. Ofcom will now take into account total turnover when deciding penalties to impose on firms that breach its rules in a bid to increase their deterrent effect. The seriousness of a breach will also be given more weight, while precedent set by historical cases will be less important in deciding on the level of fines.

Personalisation has been the buzzword on many a marketer's lips over the past few years as brands adapt their content strategies to appeal to and engage millennial audiences. However ,Tumblr is now arguing that brands need to adopt the so-called "remix culture" and hand over brand assets to win over audiences. It's a trend that has been steadily growing across social media, with users creating their own customised versions of the Star Wars trailer.

The success of The Lad Bible is testament to irreverent humour's gargantuan pull on the consciousness of teens and Millennials alike and the release of the official app has illustrated the popularity of the social media news site after it topped the app store in just 24 hours. Brushing aside the established news publishers such as the BBC and the "Guardian," The Lad Bible waltzed into the number one spot on the App store with Tuesday's release of its free iOS app.