On the face of it, the digital advertising industry has a lot to celebrate: A £7.2bn market which represents nearly 40% of total media in the UK; and the renaissance of display, in particular, which grew at 26% last year to reach £2.2bn, driven by video, social ads, and the ability to target audiences more efficiently through programmatic trading – which will certainly account for the majority of display in 2015. However, whilst the market is progressive, innovative and buoyant, there are five...