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LEARNEmail Marketing
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I can’t tell you how many times I’ve heard someone dismiss email marketing as “old-school” or “not worth it.” Email marketing is the underdog in digital marketing that just never dies. You can’t beat an inbox for connecting directly with your audience.

If you’re ready to find out why this method still reigns supreme, keep reading.

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Shane Barker
Digital Marketing Expert
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Cited Work

Over the past two decades, Shane Barker’s thought leadership in digital marketing has gained recognition among scholars worldwide. With over 170 academic citations spanning multiple countries and diverse subject areas, his insights continue to shape research in influencer marketing, SEO, content strategy, and beyond.

Below, you’ll find a comprehensive archive of scholarly papers that reference Shane’s work—illuminating his far-reaching impact on both industry and academia.

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Journal of Applied Business & Economics

Beauty Influencers and Instagram Usage

Journal of Applied Business and Economics features research by Jace Lopez and Sayeedul Islam analyzing 285 Instagram posts by beauty influencers. Their study compares engagement strategies between macro- and micro-influencers, revealing that while macro-influencers drove higher engagement, micro-influencers relied more heavily on hashtags and entertaining content.

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Shane Barker
Polytechnic University of the Philippines

Beauty Vloggers’ Influence and the Hype in Purchasing Aztec Indian Healing Clay

Lady Dy explores how beauty vloggers influence consumer purchasing decisions, specifically in the case of Aztec Indian Healing Clay. The article examines how vloggers’ endorsements create hype and impact buying behavior, incorporating the Uses and Gratifications Theory and Reputation Management to analyze marketing strategies in the digital age.

Shane Barker
University of Padova

Billie Eilish e l’evoluzione dei testimonial della moda

This thesis from the University of Padova examines the evolution of celebrity endorsements, focusing on Billie Eilish as a modern example. The study explores the history of celebrity endorsement, analyzing both traditional celebrities and contemporary influencers. It further investigates how Billie Eilish’s role as an ambassador for brands like Calvin Klein, H&M, and Gucci reflects her unique style and aligns with her activism on issues such as body shaming and sustainability. The thesis also delves into the financial and image-related benefits and risks of using celebrity endorsements in marketing.

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Shane Barker
Zurich University

Brand Fit-wie findet ein Unternehmen den passenden Influencer?: eine Untersuchung zur Entwicklung einer Strategie für die Eingehung einer Kooperation mit Influencern in der Reisebranche

This thesis explores how companies in the Swiss travel industry can effectively select the right influencers for their brand by focusing on brand identity and positioning. It identifies key success factors for achieving a “Brand Fit” with influencers, and presents a practical framework for evaluating influencers and ensuring alignment.

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Shane Barker
Manisa Celal Bayar University

Bütünleşik pazarlama iletişimi faaliyetlerinde geleneksel ünlü ve sosyal medya fenomeni kullanımının tüketici davranışına etkisi

This study by Selin Göral and Burak Kartal, published in January 2019, explores the impact of traditional celebrities versus social media influencers on consumer behavior within integrated marketing communication activities. The research investigates how different types of influencers affect consumer decision-making processes, particularly focusing on the factors of credibility and product congruence.

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Shane Barker
IGI Global

Celebrity and influencer in a fan economy: Unfolding the fans’ roles in enhancing endorsement effects

IGI Global features Kineta Hung’s examination of how fans actively shape the impact of celebrity and influencer endorsements. By analyzing fan behavior in both traditional and social media contexts, the chapter reveals a shift from passive viewership to co-creation, where fan loyalty becomes a driving force behind endorsement effectiveness in today’s fan economy.

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Shane Barker

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