Clearspring Taps Internet Veteran Ramsey McGrory as CEO

Former Yahoo! Exec Joins Inc. 500 Web Company to Accelerate Growth

McLean, Va. - September 26, 2011 — Clearspring, provider of the largest platform for sharing online content, AddThis, announced today it has named former Yahoo! executive Ramsey McGrory as the company's new Chief Executive Officer. McGrory joins Clearspring from Yahoo! where he led the Yahoo! US data business and Right Media, pioneer of the digital advertising exchange.

"In our industry, data and social are where incredible innovation is happening. I'm thrilled to be joining Clearspring. Clearspring has a fantastic team and a differentiated ability to understand online consumer behavior through its massive reach and realtime data processing capability," said McGrory. "This is exciting because Clearspring's premier digital services platform has not only proven to be powerful in the advertising market, but also it has the potential to disrupt others as well."

Clearspring founder Hooman Radfar will continue to drive the company’s product and marketing in his new role as Executive Chairman. Current chairman, Ted Leonsis, will remain on the board of directors. "Clearspring is at an inflection point," said Radfar. "AddThis has become the standard sharing platform on the web, our advertising revenue is more than tripling this year, and the trajectory for next year is incredible. Ramsey's operational expertise in scaling data-driven and large platform businesses operations is just what we need to take our rapidly growing company to the next level."

Clearspring continues to mature in both its publisher and advertising businesses. Fueled by its recent $20M Series D financing that was led by Institutional Venture Partners, Clearspring has aggressively grown its AddThis social sharing platform and Audience Platform. In 2011, this growth has been recognized by its selection for the AlwaysOn Global 250 Top Private Companies list, the Inc. 500, and Business Insider’s Digital 100 Most Valuable Startups.

About AddThis

AddThis is the leader in socially connecting publishers, services and advertisers to audiences on the open web. Reaching more than 1.3 billion unique users monthly, AddThis' social tools and analytics are used on more than 14 million unique domains to distribute and track digital content such as web pages, widgets, and videos to social networks, bookmarking sites, blogs, and more. AddThis' proprietary XGraph data technology processes 70 percent of the world's web traffic to deliver real-time insights, data-driven tools, and high-performing audience products. Visit to learn more.

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