Here are the top digital marketing data and case studies that caught our eye.

Mobile ads now account for four-fifths of Facebook ad revenue

A surge in video views that has boosted advertising spending contributes to a bumper final quarter for Facebook.

Google overtakes Apple as world’s most valuable company

Google’s new parent company Alphabet has overtaken Apple as the world’s most valuable company by market value, despite its ‘moonshots’ losing it $3.5bn over 12 months.

WhatsApp passes one billion monthly user mark- most popular in LatAm countries

WhatsApp is now used by a billion people every month, Facebook has reported. Mobile messaging service is used most in Latin America, while the chat app struggles in North America, where stable-mate Facebook Messenger leads the way, according to new research.

Mobile trends: 90% of mobile time spent using apps [Infographic]

People now spend on average over 3.5 hours a day using our mobile devices, making them the most important screen in our lives for content and the most valuable one for advertisers, according to new research.

CASE STUDIES

Analytics case study: Behind the scenes video shows how Google revamped Hertz marketing

Over the past year, Hertz partnered with digital agency Forward 3D and Google to identify its key challenges and devise a step-by-step strategy for improving its marketing and sales operations. A series of behind-the scenes videos shows how Google worked with the vehicle hire company to identify how its display ads were undervalued by a massive 400%.

Top 10 branded Vines of 2015

Twitter’s short form video sharing platform Vine celebrated its third birthday this week. To mark the occasion, Vine has selected ten of the most memorable six-second clips from brands in the UK over the past 12 months.

Halwani Bros direct response campaign gets 5x more reach than expected

Using a Facebook direct response campaign to help relaunch its popular jam range, the Middle Eastern food company exceeded its reach targets 5 times over.