Marchex, Inc.

About Us

Executive Management

Russell C. Horowitz

Chairman of the Board of Directors and Chief Executive Officer

Mr. Horowitz is a founding officer and has served as the Chairman of our board of directors, Chief Executive Officer and Treasurer since our inception in January 2003. From January 2001 to December 2002, Mr. Horowitz and our founding officers jointly reviewed new business opportunities in the retail, media, finance and technology industries. Mr. Horowitz was previously a founder of Go2Net, a provider of online services to merchants and consumers, including merchant web hosting, online payment authorization technology, and Web search and directory services. He served as its Chairman and Chief Executive Officer from its inception in February 1996 until its merger with InfoSpace, a provider of online services focused on Web search, online payment solutions for merchants, mobile infrastructure applications and content for wireless carriers, in October 2000, at which time Mr. Horowitz served as the Vice Chairman and President of the combined company through the merger integration process until January 2001. Additionally, Mr. Horowitz served as the Chief Financial Officer of Go2Net from its inception until May 2000. Prior to Go2Net, Mr. Horowitz served as the Chief Executive Officer and a director of Xanthus Management, LLC, the general partner of Xanthus Capital, a merchant bank focused on investments in early-stage companies, and was a founder and Chief Financial Officer of Active Apparel Group, now Everlast Worldwide. Mr. Horowitz received a B.A. in Economics from Columbia College of Columbia University.

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Michael Arends

Chief Financial Officer

Mr. Arends has served as our Chief Financial Officer since May 2003. Prior to joining Marchex, Mr. Arends held various positions at KPMG since 1995, most recently as a Partner in KPMG's Pacific Northwest Information, Communications and Entertainment assurance practice. Mr. Arends is a Certified Public Accountant and a Chartered Accountant and received a Bachelor of Commerce from the University of Alberta.

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Ethan Caldwell

Chief Administrative Officer and General Counsel

Mr. Caldwell is a founding officer and has served as our Chief Administrative Officer, General Counsel and Secretary since our inception in January 2003. From January 2001 to December 2002, Mr. Caldwell reviewed, together with the other founding officers, new business opportunities in the retail, media, finance and technology industries. Mr. Caldwell was previously Senior Vice President, General Counsel and Corporate Secretary of Go2Net, from November 1996, until its merger with InfoSpace in October 2000. Mr. Caldwell assisted in the integration of Go2Net with InfoSpace through December 2000. Mr. Caldwell received his J.D. from the University of Maryland and his B.A. in Political Science from Occidental College.

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Peter Christothoulou

Chief Strategy Officer

Mr. Christothoulou is a founding officer and has served as our Chief Strategy Officer since our inception in January 2003. From January 2001 to December 2002, Mr. Christothoulou reviewed, together with the other founding officers, new business opportunities in the retail, media, finance and technology industries. Mr. Christothoulou was previously the Senior Vice President of Strategic Initiatives for Go2Net, focused on strategic acquisitions and investments, from January 2000 until its merger with InfoSpace in October 2000, at which time he served as the Senior Vice President of Corporate Strategy and Development of the combined company through the merger integration process until January 2001. Prior to Go2Net, Mr. Christothoulou was a Vice President in the Investment Banking Group of U.S. Bancorp Piper Jaffray, focused primarily on merger and acquisition advisory services for technology companies, and was with the investment banking firm from 1996 until January 2000. Mr. Christothoulou received a B.A. in Economics from the University of Washington.

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Bill Day

Chief Media Officer

Mr. Day has served as our Chief Media Officer since August 2007. Prior to joining Marchex, Mr. Day served as the co-founder and CEO of About.com, a pioneer in providing vertically focused original consumer information and advice. He grew About.com to one of the most highly trafficked content destinations on the Internet, a top 20 global online media network covering more than 700 topics and 50,000 subjects used by tens of millions of monthly users to find highly targeted, useful information. While at About.com, he also pioneered contextual pay-per- click advertising through the launch of the Sprinks Network. Following Primedia's acquisition of About.com in 2000, Mr. Day continued as CEO of About.com, running the division within Primedia through 2003. More recently, from 2004 to 2007, he served as CEO of MeMedia, a privately held behavioral advertising network. He received his B.S. in Mechanical Engineering from Yale University, and his M.B.A. from the Wharton School of the University of Pennsylvania.

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Cameron Ferroni

Chief Technology Officer

Mr. Ferroni has served as our Chief Technology Officer since October 2005. He previously held a series of senior leadership positions with the Microsoft Corporation during a 13-year tenure with the company. From 2002 to 2005, Mr. Ferroni was General Manager of Microsoft's Xbox Software and Services Platform team, managing a unit of more than 200 employees responsible for building and designing all software features for the widely-acclaimed Xbox 360 product, as well as the next generation of Xbox Live. Prior to that, he served as Product Unit Manager for Xbox and was responsible for forming the initial product vision and strategy. Mr. Ferroni also recruited and managed Xbox's original 50-person platform software team, then founded and built the Xbox Live product and team. From 1992 to 1999, he held key leadership roles within Microsoft's Web server and Windows NT businesses. Mr. Ferroni received a B.A.Sc. in Computer Engineering from the University of Waterloo.

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John Keister

President, Chief Operating Officer and Director

Mr. Keister is a founding officer and has served as our Chief Operating Officer and as a member of our board of directors since our inception in January 2003, and as our President since December 2003. From February 2001 to December 2002, Mr. Keister reviewed, together with the other founding officers, new business opportunities in the retail, media, finance and technology industries. Mr. Keister was previously a founder of Go2Net and served as its President from 1999 until its merger with InfoSpace in October 2000, at which time he served as Executive Vice President of the Consumer Division through the merger integration process until January 2001. He also served as a member of the board of directors of Go2Net and as its Chief Operating Officer from 1996 to 1999. Mr. Keister received B.A. degrees in Philosophy and in Diplomacy & World Affairs from Occidental College.

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Profiles