Investor Relations

Accel Partners has a history of excellence and innovation in the venture capital business. Founded in 1983, the firm is dedicated to partnering with outstanding management teams to build world-class Internet, software and networking companies. With over $3 billion under management, Accel Partners has a long legacy of helping entrepreneurs build highly successful companies. Accel portfolio companies have completed IPOs that have created well over $100 billion in market capitalization. Accel has a history of backing category-defining companies, which include Actuate, Agile Software, AMCC, Arrowpoint, Foundry, Macromedia, Portal, Polycom/PictureTel, Uunet, Veritas, and Real Networks. For more information, visit the Accel Partners web site at www.accel.com.

Bessemer Venture Partners, with offices in California, Massachusetts and New York, is the leading national, early-stage venture capital firm in communications technology and Internet infrastructure. The firm manages more than a billion dollars of venture funds, carrying on a tradition of hands-on, active venture investing that has continued since 1911. Bessemer has backed many companies including VeriSign, Cascade, Sirocco, Staples, net.Genesis, Sonus, and eSteel. For more information, visit Bessemer's web site at www.bvp.com.

Highland Capital Partners was founded in 1988 with the mission of helping great people with great ideas build great companies. Focused on seed, early and growth stage companies in the information technology, communications and healthcare sectors, the firm emphasizes a team-oriented approach in providing the right mix of strategic guidance, hands-on leadership, and deep industry domain expertise for helping entrepreneurs and their teams become market-leading organizations. With over $1.8 billion of committed capital, Highland has invested in and worked to create such firms as Altiga Networks, Ask Jeeves, Avid Technology, CheckFree, EXACT Sciences, Lycos, MapQuest, New Oak Communications, Ocular Networks, Odyssey Healthcare, Starent Networks, Sybase, Telica and WebLine Communications. For more information, visit Highland's web site at www.hcp.com.

In-Q-Tel is the strategic investment firm that works to identify, advance, and deliver innovative technology solutions to support the mission of the U.S. Intelligence Community. Launched by the CIA in 1999 as a private, independent, not-for-profit organization, In-Q-Tel's mission is to identify and partner with companies developing cutting-edge technologies that serve the national security interests of the United States. Working from an evolving strategic blueprint defining the Intelligence Community's critical technology needs, In-Q-Tel engages with entrepreneurs, growth companies, researchers, and venture capitalists to deliver technologies that provide superior capabilities for the CIA and the larger Intelligence Community. In-Q-Tel concentrates on several broad commercial technology areas, including application software and analytics; communications and infrastructure; embedded systems and power; and bio, chemical, and nanotechnology. To date, In-Q-Tel has engaged with more than 100 companies and delivered more than 140 technology solutions to the Intelligence Community. To learn more about In-Q-Tel, visit www.in-q-tel.org.