Google’s income in Q3 was hit by fx headwinds and a rise in traffic acquisition costs (TAC) for its ad business as well as by higher than expected losses at Motorola

Headline growth in gross advertising revenue continued to slide, primarily due to the effect of the strong dollar; of more concern, rising TAC cut gross margin by 3 ppts

Mobile now accounts for the majority of growth in ad revenue, which should improve as mobile ad yields rise, though net margin could decline if Google has to pay out a greater share to partners such as Apple

The third of our four reports on specialist advertising focuses on the automotive sector and AutoTrader's role at the heart of the dealer ecosystem

The used car market has been remarkably resilient in recent years, but as with many classified categories the core trend in digital is diversification to a suite of services from a core listings model

AutoTrader's owners Apax Partners and Guardian Media Group will of course be considering their options in terms of an exit from their investment

The second of our four reports on specialist advertising focuses on the property sector, and specifically assesses the implications for Rightmove and the sector generally of the merger of Zoopla with DMGT's property portfolio, which includes Find a Property and Prime Location The merger creates a market duopoly that will put print media under further pressure, though Estate Agents remain attracted to the lead-generation and attractive branding benefits of print distribution and layout Meanwhile, the sector has rebased in scale: while house prices are in aggregate very stable, transaction volumes are still only a little more than half the market peak in 2007

Since the onset of the recession in 2008-09, the revenues and profitability of the recruiters, auto dealers and estate agents which purchase print and online advertising media have been impaired by lower transaction volumes, putting pressure on advertising budgets. New digital marketing and communications requirements have further claimed budgets previously allocated to print, which will continue to decline in absolute and relative terms

Recruitment has been the classified vertical with the most rapid print-to-digital transition, to the detriment of regional newspapers mainly. Online offers national reach at a fraction of the cost per listing

Unlike autos or property, recruitment is a fragmented vertical across a number of large job boards and niche sites serving identifiable professions

Facebook now has more than one billion users but future commercial success depends on monetising the growing consumption via mobile devices, which are replacing the PC as the main method of access

Facebook’s new mobile ads are newsfeed based Sponsored Stories and Promoted Posts rather than banners; early agency performance feedback is positive

Rapid growth in mobile ads will not be sufficient to offset slowing growth from PC-based advertising in 2012 and 2013, but revenue growth should pick up in 2014 as mobile ad volumes ramp up and other initiatives kick in

Global Radio’s acquisition of GMG Radio has cemented its dominant position in the commercial radio sector, giving it a 51% share of revenues and a 47% share of listening.

If approved by the Competition Commission, the deal will allow Global to extend the Heart brand to the North of England and Scotland, helping to establish a stable listener base ahead of the digital switchover.

We believe there is scope for further consolidation, which is likely to focus around Planet Rock and Absolute Radio – two groups that are leading the way on digital platforms.

The broadcast and online success of the London Olympics and Paralympics, though never in doubt, was beyond expectations.

Despite the large growth in mobile devices and rise in social media, audience data underlined the importance of live viewing on the TV set in the living room.

Although commercial audiences (other than Channel 4) took a battering, the Olympics/Paralympics was a blip and unlikely to harm budgets across the full year or have significant knock-on consequences in 2013.

Lord Justice Leveson’s report to the Coalition Government is likely to recommend a new independent press regulator set up by an ‘enabling’ statute, in order to better protect individuals from press intrusion and maltreatment.

David Cameron and the Conservatives appear set to reject any use of statute, preferring to see the industry proposal for ‘contractual self-regulation’ implemented.

If a ‘Leveson Act’ is ever to be passed, it will have to be either a joint Liberal Democrat/Labour effort, or one undertaken by another Prime Minister after 2015.

A number of developments over the summer have, at least in theory, made the UK 4G mobile spectrum outlook a lot clearer: in July Ofcom issued its final policy statement regarding the 800MHz and 2.6GHz ‘4G’ auctions, in August it decided to allow Everything Everywhere (EE) to ‘refarm’ its 1800MHz spectrum for 4G use, and EE announced that it had sold 15MHz of its 1800MHz spectrum to H3G

The main short term implication is that EE will have clear short term advantage of being the only operator offering 4G (LTE) services for about 12 months from (roughly) the end of September 2012 to (roughly) the end of September 2013

The main uncertainty is legal action; O2 and/or Vodafone may appeal Ofcom’s decision to allow EE to refarm its 1800MHz spectrum, which would trigger EE to appeal the 4G spectrum auction rules, and give 4G in the UK an unhelpful delay

News Corporation’s Fox is to acquire a controlling stake in the Eredivisie Live pay-TV channel, which holds long-term rights to the top football league in The Netherlands.

The guarantees that Fox will give to the league imply that revenues will more than double over the twelve years from 2013-14. Although we see growth potential in the historically underdeveloped Dutch pay-TV market, this looks challenging.

Eredivisie Live operates in a wholesale market, making it very difficult to replicate the Sky platform model. The rationale for the deal appears instead to lie in an effort by Fox to opportunistically strengthen its global portfolio of sports channels.