Dr Dave Chaffey is an independent author, consultant and trainer who specializes in improving results from digital marketing. He has been recognised by the Chartered Institute of Marketing as one of 50 marketing gurus worldwide who have helped shape the future of Marketing. His latest book is the 4th edition of Internet Marketing: Strategy, Implementation and Practice.

Dave has been involved "hands-on" in SEO since 1998 when he built his first site and started defining best practice to advise clients. Since then he has consulted and trained many companies o help improve their results from Search Engine Marketing including managing pitches for SEM through his company Marketing Insights Limited (www.marketing-insights.co.uk).

He is author of the popular Econsultancy Best Practice Guides to Search Engine Optimisation, Paid Search Marketing and Web Design.