The market for addressable TV looks constrained despite its benefits, with Sky AdSmart taking less than 2% of overall TV ad revenues. Meanwhile, online video revenues for Google, Facebook and others have surged dramatically

Agencies are seemingly enraptured by online video – a highly profitable medium to buy – despite concerns about a lack of effectiveness, safety and transparency 

For broadcasters to compete, better radical collaborative action is needed, including industry-wide adoption of AdSmart, and overhauling the trading agreements which hinder its take-up

Almost half of Facebook’s impressive revenue growth and turnover is still reliant on the US, where user growth has slowed down

Among GAFA platforms, Facebook’s core business is the one most directly dependent on dwell time, but the metric for the crucial home market is clouded in mystery

The company has yet to create significant compensating revenue streams outside display advertising, raising the importance of international markets for Facebook’s future

Apple has fulfilled its promise to roll out innovative new products this year, launching Apple Watch into the nascent wearables market and Apple Pay, a new mobile payments service, as well as moving the iPhone into ‘phablet’ territory.

The larger-screened 6 and 6 Plus should revive growth in iPhone sales and ASP, as well as providing another variable to compete in the mid-tier handset segment; Apple Pay further enhances Apple’s lock on its customer base.

Apple Watch’s likely impact is harder to discern; to date sales of smartwatches have been lacklustre but although Apple’s offering is the most commercially viable yet, it still feels like a solution in need of a problem.

Amazon has entered the increasingly crowded digital entertainment TV device marketplace, one which could be strategically more important for the ecommerce giant than tech rivals Apple and Google

The frictionless integration of entertainment and ecommerce on TV represents a bigger consumer milestone than competitor services are offering, and Amazon’s brand has huge appeal, though at present it has less market traction for streaming than it does for other products

Content owners and broadcasters remain the real TV gatekeepers, with integration of TV and digital a service-level pipe dream for now, and so Amazon will likely have to accept being one of many, rather than the runaway winner as it is in books

Explosive growth in take-up of smartphones and tablets means that the effective size of the internet will increase by several multiples within the next few years. This transformation in scale comes with a major change in character and operating dynamics, creating new opportunities and revenue streams.

Twitter is unique amongst social apps: it gives new users a blank canvas in which they can (and must) create their own social network reflecting their own interests, hence building an ‘Interest Graph’, but onboarding new users remains a challenge.

Revenue at Twitter is now on a $600 million annual run-rate, scaling rapidly since the introduction of ‘native ads’, and seems set for further growth: the key question is whether it can achieve breakout user growth and mass market scale.