Mr. Johnston is the Global Digital Leader for Mindshare Worldwide, a leading advertising media agency (part of Group M), and a member of the Advisory Board of SweetBeam.

Mr. Johnston has been involved in interactive marketing since graduating from Chicago’s Northwestern University in 1988. While at Accenture, he led a team that developed one of the earliest interactive shopping destinations for a large US retail client. After completing his MBA from Duke University in 1995, Norm joined America's first digital agency, Modem Media, who revolutionized the advertising industry by placing the first banner ad on the internet.

In 1997, Mr. Johnston moved to London to open Modem's first international office. During his time in London, Modem Media became a leader in the UK digital agency scene, known for nurturing some of the UK's best digital talent, consistently placing in the top of the digital league tables, and a winner of numerous international interactive awards on behalf of clients such as Unilever, General Motors, and Citibank. Modem UK was responsible for the UK's first rich media ad and viral campaign, and its innovative work led the London office in 2006 to being named as one of the world's top 10 most awarded digital agencies and the top winner in the UK. 

Mr. Johnston joined Mindshare in 2007 to lead its digital operations in Europe, and has recently assumed a broader global responsibility for digital services as well as a position on the company's global executive board.

Mr. Johnston is a vocal evangelist of the digital industry and is a frequent speaker at interactive conferences, including the most recent IAB Europe regional conference in Berlin.  He lives with his family in London, United Kingdom.