2013 has seen yet another year of strong growth in consumer adoption of mobile devices and screens adding to the challenges facing traditional media. Press and radio have long been affected, but television is now starting to feel the heat

BT and Sky’s contest for premium pay-TV sports rights has intensified. August saw the launch of BT Sport, while BT’s acquisition of the European football rights in November was a clear statement of intent, spending half of Channel 4’s total programming budget on approx. 200 hours of content

The UK has seen buoyant advertising growth of around 4% in 2013, with similar growth expected in 2014, in the context of the strongest economic recovery in Europe

Facebook’s audience and engagement continue to rise as a result of the migration to mobile devices – on its current trajectory more people will access the social network via mobile devices than PCs by the end of 2014

The transition to mobile is cannibalising desktop time on Facebook but significantly higher usage on mobile devices and rising mobile ad yield is driving growth in overall consumption and revenue

Whilst CEO Mark Zuckerberg’s claim that “Facebook is now a mobile company” is increasingly justified, longer term questions remain over whether it can maintain its central position on the mobile internet or develop significant new streams of revenue

Facebook has announced Home, an Android app that takes control of your phone, replaces the home screen with your Facebook newsfeed and relegates any competing social services to, it hopes, an afterthought.

At launch, Home will be available to at most 20% of Facebook’s mobile base. It is an interesting tool to lock in core users and drive up their engagement, but can only be part of Facebook’s mobile strategy.

Facebook has strong mobile user and revenue growth, but has not ‘won’ social on mobile as it has on the desktop, and competing services have drawn hundreds of millions of users. It is not yet clear Facebook will win, or even that there will be a single big winner.

Facebook’s announcement of Graph Search, the company’s first move into socially-powered search which now in beta trial in the US, leaves many details unanswered including full launch and monetisation plans. Reliance on user-generated content from Facebook friends limits the usefulness of Graph Search as a conventional search engine and hence its impact on Google and other web search businesses in the near term. In the longer term, Graph Search could become a powerful recommendation engine for certain categories like travel, but its dependence on user data and privacy restrictions are likely to limit its wider utility and revenue potential.