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

Facebook selling fewer ads at higher prices- report

Facebook is now serving 65% fewer ads, but the average cost per ad is 335% higher, compared to the same period in previous year, according to a news report.

The best and worst subject line words: ‘Offer’ good, ‘Monday’ bad

When it comes to email subject lines, words such as ‘content’, ‘offer’ and ‘benefits’ increase email open rates, ‘Friday’ , ‘Monday’, and ‘double’ could actually harm performance, according to new research.

Apple catches Samsung as top smartphone seller

Apple has caught up with Samsung as the world’s biggest smartphone seller in the world, due to soaring sales of its larger iPhone 6 model, according to new research.

Can Pinterest succeed as an ad platform?

Pinterest has quietly and steadily grown not only its audience but also its business prospects over the past few years. As Pinterest rolls out its own native advertising unit , market research firm ComScore looks how the social scrapbooking site can compete with the likes of Facebook and Twitter as a viable ad option for brands.

Apple still has highest ad revenue, despite Android’s growing traffic- research

Android captured the majority (63%) of global mobile ad traffic in Q4, but Apple retained its lead in revenue generation, according to the State of Mobile Advertising report released today by Opera Mediaworks.

Increase in video viewability as fewer people skip ads

Online video viewability in the UK rose 9% to 39% from the previous quarter, as more consumers watch online ads on mobiles and PCs, according to new research.

Marketing gets personal: 90% say ‘individualised marketing is the future’

Twice as many companies now have strategic data-driven marketing initiatives than in 2013, according to new research.

CASE STUDIES

Super Bowl case study: Loctite gambles entire year’s budget on one ad

Straight from out of left field, Loctite’s first-ever Super Bowl ad succeeded in getting people to talk about the brand. The 52-year old glue brand spent its entire annual budget on one Super Bowl commercial- priced at $4.5m for a 30 second slot. This case study looks at whether the gamble paid off.

McDonald’s Super Bowl strategy: ‘Pay With Lovin’ and Twitter ad break giveaways

At this year’s Super Bowl, McDonalds certainly took the prize for most innovative digital aspect of a campaign, with a two-pronged strategy to get people talking while watching the game. The fast food chain used its 2015 ad to announce that it will let random customer pay with funny and heart-warming gestures rather than cash. This was followed up with tweets that pledged to giveaway all other products advertised during each ad break- from Toyota cars to superglue.

Product innovation case study: ANZ’s GayTM

To celebrate ANZ becoming the principle partner for Sydney’s 2014 gay and lesbian Mardi Gras the bank bedazzled ten of its ATMs in the city. The banks ‘GayTM’s’ were such a success that the campaign won seven awards at the Cannes Lions 2014 including the Grand Prix prize for Product Innovation in the outdoor category.