Consumer ebook sales exploded after Amazon launched its Kindle in the UK in 2010, but growth rapidly slowed, and disruption was limited by genre, creating parallel ebook and physical book markets

Compared to the relentless downward spiral of music purchasing, these trends have been heartening for publishers and booksellers, but there are signs that slower, more complicated and insidious disruption is emerging

Decades of steady, albeit slow, growth in total book sales have been reversed, as consumers spend more time on a variety of mobile-delivered services, including some in classic content categories for books

The latest numbers for Q1 2015 show strong device and internet user growth, with more of the population online than ever before, including more than 90% of under-55s. Growth amongst older groups, however, has slowed to a crawl

Participation in online activities is up across the board, but digital media data shows spend on ebooks and digital music struggling, with the latter being heavily impacted by the rise of unlimited streaming models such as Spotify

The story of mobile's surge continues, with almost a half of e-commerce transactions and a third of search and display ad spend now going to mobile. Most of these mobile devices are Android, but iPhone seems to have gained long term share with its larger phones. Google services, however, have cross-platform reach

By the end of 2013 there will be more iOS and Android devices in use than PCs. Google is using Plus and Android to reposition itself to take advantage of this, extending its reach and capturing far more behavioural data

We believe a helpful way to look at Google is as a vast machine learning project: mobile will feed the machine with far more data, making the barriers to entry in search and adjacent fields even higher

For Google, Apple’s iOS is primarily another place to get reach: we see limited existential conflict between the two. However, mobile use models remain in flux, with apps and mobile social challenging Google’s grip on data collection

This report explores and quantifies expenditure in the local media landscape. Flat disposable income and the rise in e-commerce continue to force many retailers from the high street, though we argue first-rate small and medium enterprises (SMEs) have the opportunity to grow share of the local market, despite these pressures

Technology has radically disrupted the way local businesses reach out to consumers. Not only has advertising expenditure moved online, but SME spend is dissipating into other activities, including distribution and platform developments, PR, social and sponsorship activities and live events

The rise of smartphones has created the tantalising prospect of a perfect local media solution. We assess the level of opportunity for Google, Facebook, Hibu, local newspapers, local radio, local TV and hyperlocal organisations

The last of our four reports on specialist advertising focuses on business directories, probably the most rapidly changing marketplace of them all

The transition from listings to marketing services seems to be unfolding as quickly as the transition from print listings to digital listings that preceded it

While listings advertising expenditure is collapsing, the 'marketplace' for local business communications is expanding and being competed for by a much wider range of businesses. Hibu (Yell) has positioned itself well as a '360 degree' solution

We forecast print media advertising will be down by about 4% in 2012, with national newspaper display roughly flat, performances we envisage will be seen as a temporary reprieve once the substantially tougher 2013 that we expect to follow is underway

Print media is not out of the structural woods, and even relatively small revenue contraction will amplify pain as the opportunities for further streamlining fixed-cost physical distribution operations are realistically diminishing

Digital is a greater challenge for paper than for screen media, as consumer and advertiser demand continues to weaken, yet publishers struggle to generate the killer service solution to stimulate scale revenue online

Enders Analysis co-hosted its annual conference, in conjunction with BNP Paribas and Deloitte, in London on 19 January 2012. The event featured talks by 13 of the most influential figures in media and telecoms, and was chaired by Sir Peter Bazalgette. An edited transcript of notes taken during the speaker presentations follows.

The speakers were Sir Martin Sorrell (CEO, WPP), Glen Moreno (Chairman, Pearson), Martin Morgan (CEO, DMGT), David Levin (CEO, UBM), Dan Cobley (MD, Google UK & Ireland), Mike Pocock (CEO, Yell), Vittorio Colao (CEO, Vodafone), Charles Dunstone (Chairman, Carphone Warehouse, TalkTalk Group), Stephen Carter (President, Alcatel-Lucent EMEA), the Rt. Hon. Jeremy Hunt MP (Secretary of State for Culture, Olympics, Media and Sport), Neil Berkett (CEO, Virgin Media), Liv Garfield (CEO, Openreach) and Ed Richards (CEO, Ofcom).

Revenues and profits continue to crash at the directory giant as local and small business expenditure shifts to cheaper online media

We believe Yell’s challenges may be less about share of voice, and more about how to absorb the pace of structural change – and to operate its business effectively from a much lower top-line

Tough conditions in all territories – UK, US, Spain and Latin America – have accelerated structural change, but Yell has some advantages over the start-ups, search algorithms and social networks that surround it

We forecast UK online advertising to grow by 8% CAGR to £5.1 billion by 2014, representing approx. 33% of total advertising spend, overtaking press

Search is the main growth engine, which we predict will reach £3.1 billion in 2014, due to its appeal and value to advertisers as a sales and lead generation tool

Growth in spend on social media and video networks will push online display to just over £1 billion by 2014; whilst classifieds will grow to £840 million

Yell announced this week that full year sales growth (to March 2008) in its UK operations would be 2%, sharply down from the previously forecast 3%, due to “toughening market conditions” since the start of 2008