xiv AC k n o W l e D G e M e n t s Damian Ryan Just like the digital marketing industry, this book continues to evolve. This new edition contains a re-write of most of the original 11 chapters. However we have replaced the creative chapter with a mobile marketing chapter. Why? Well because creative speaks for itself doesn't it? So why not just share with you a collection of some of the most amazing digital marketing campaigns from around the world rather than rabbit on about `how to be creative', a question we still struggle to answer in any case! Also the increased level of activity in mobile marketing meant a chapter was required this time round to reflect the importance of mobile as it moves rapidly towards centre stage in the digital marketing spectrum. As usual I have a list of people to thank for their input, advice and support. Alexandra O Brien helped us pull together the case studies for this edition and our deepest thanks go to her for a brilliant job well done.