Eileen Brown is CEO of Amastra, a media strategy consultancy. She is the author of the BCS book 'Working the Crowd', a writer on innovation and social business for ZDNet and an international speaker on the Internet of Things, media, online branding, and women in technology.Betsy Aoki is a Senior Technical Program Manager for metrics at Hulu and has previously worked as a Senior Program Manager for Bing and social media at Microsoft. Betsy has been named by ZDNet's Mary Jo Foley as one of Microsoft's Women Worth Watching, and has been listed as one of biztechtoday's top 25 influential business women of Seattle on Twitter.

'Finally! Someone has broken down the very complex industry of Digital Marketing! I hope that every college assigns this book to first year marketing and business students and that everyone who is currently in marketing reads it to understand that digital marketing is not just advertising online. I know I'll be sharing it far and wide.'

• Overview of the Digital Marketing FieldThe Role of the Digital MarketerTools, Methods and TechniquesNext Steps For The Digital MarketerA Day In The Life Of A Digital Marketer