Emerson Spartz

Emerson Spartz is an American internet entrepreneur and digital media innovator who became a pioneer of online fandoms at an early age. At just twelve years old, he founded MuggleNet, which quickly grew into the internet’s most popular and influential Harry Potter fan site.

He is best known in the publishing world for co-authoring the New York Times bestseller MuggleNet.com’s What Will Happen in Harry Potter 7, a highly anticipated speculative guide that captivated the fandom before the final book’s release. He later founded Dose, a digital media company focused on viral content.

Spartz’s early mastery of digital community building and viral algorithms made him a leading voice in new media strategy. His innovative approach to online content creation continues to influence modern digital marketing and social media trends.