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Radfar, Hooman

As chief executive officer and co-founder, Hooman Radfar drives all product, marketing, and strategy initiatives for Clearspring, a widget and content-sharing network he co-founded in 2004 as a Carnegie Mellon University graduate student.

Radfar has helped Clearspring achieve unprecedented reach with its widget syndication platform during his tenure as CEO, and he specializes in ensuring that content can be virally distributed across the social web. The Clearspring network is integrated with more than 80 social sites and reaches more than 512 million users worldwide.

Toward the end of 2008, Radfar's vision for the future of sharing and distribution on the web led him to the decision to acquire AddThis LLC, the largest bookmarking and sharing tool that appears on hundreds of thousands of websites and enables publishers to make their website content viral. AddThis is served more than 20 billion times per month in dozens of languages, and it is growing between 15-20 percent monthly.

He doesn't do anything part way; he brings full commitment to his business, the viewers/users, the development community, and the broader communications community at large."

  • Mark Silva

  • principal, founder, managing director, Real Branding

Hooman looks at the world as an algorithmic challenge, and he has set out to solve some of the most massively scalable solutions for the emerging social web.

Radfar is praised for his innovation in the areas of Web 2.0, social advertising, digital content syndication, and the semantic web, among many other specialties in the online sector.

As a result of Radfar's drive and devotion, Clearspring has more than 100,000 third-party developers worldwide building solutions using the Clearspring platform -- known and admired for its robust application stack.

Radfar was recently named one of Tech's Best Entrepreneurs in BusinessWeek, and he is a two-time nominee for Ernst & Young's Entrepreneur of the Year. He is a frequently requested speaker at conferences like ad:tech, Digital Hollywood, Web 2.0 Expo, and CES. He has also delivered the prestigious Whiting-Turner Lecture at the University of Maryland, and he was the recipient of the Technology Business Leadership Award from the A. James Clark School of Engineering at the University of Maryland.

Radfar is also known for his prolific technology musings on his blog Widgify -- ranked one of the top blogs of 2007, according to Software Development Times. He is also an investor in Playlist.com, and he serves on the advisory boards of RateItAll.com, Social Gaming Network, and AlphaLabs.

Follow Hooman on Twitter at @HoomanRadfar.

Hooman is an investor and entrepreneur with demonstrated experience in product development, strategy, operations, financing, and mergers & acquisitions. He is co-founder & chairman of AddThis, the world's largest social infrastructure and...

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