Dave Chaffey is a digital marketing consultant and co-founder of the marketing advice education learning platform SmartInsights.com. He continues to lecture at universities and colleges including the University of Leeds, University of Portmouth, Manchester Metropolitan University, Cranfield and Warwick and the Institute of Direct and Digital Marketing.

Fiona Ellis-Chadwick is a Senior Lecturer in Marketing at the Loughborough University School of Business and Economics, Director of the Institute of Research Application and Consultancy at Loughborough University, academic marketing consultant and author.