El Dorado Ventures
El Dorado Ventures (EDV) is a leading entrepreneur-focused, early-stage venture capital firm with a 20-year history of success. Entrepreneurs see EDV as a trusted investment partner who shares their vision and helps them succeed by providing ongoing strategic guidance and access to a wealth of industry contacts. With $750 million in capital under management, the firm invests across the information technology spectrum, from semiconductors and systems to communications, software and services, targeting both consumers and the enterprise. El Dorado's early-stage investments have included Cyras Systems, EarthLink, Efficient Networks, Novellus and NuSpeed Internet Systems. Numerous EDV portfolio companies have gone public or been acquired by major technology companies including Ciena, Cisco Systems, nVidia, Siemens, Texas Instruments and Yahoo. For more information, please visit www.eldorado.com.

Intel Capital
Intel Capital, Intel's global investment organization, makes equity investments in innovative technology start-ups and companies worldwide. Intel Capital invests in a broad range of companies offering hardware, software and services targeting enterprise, home, mobility, health, consumer Internet, semiconductor manufacturing, and cleantech. Since 1991, Intel Capital has invested more than US$6 billion in approximately 1,000 companies in more than 40 countries. In that timeframe, about 157 portfolio companies have gone public on various exchanges around the world and another 187 have been acquired by other companies. In 2007, Intel Capital invested about US$639 million in 166 deals with approximately 37 percent of funds invested outside the United States. For more information on Intel Capital and its differentiated advantages, visit www.intelcapital.com.

Palomar Ventures
Palomar Ventures was launched in 1999 by veteran venture capitalists to focus on early stage information technology companies that demonstrate the potential for exceptional growth and market leadership. The partners at Palomar have contributed their energy, strategic insight, network of corporate relationships and recruiting skills to assist in building nearly 50 public companies. Palomar Ventures is currently investing Palomar II, a $220 million fund. Their philosophy includes a commitment to responding rapidly to new ideas and business plans, and to forming partnerships with the goal of creating sustainable companies for the long term. Additional information about Palomar Ventures can be found at www.palomarventures.com

Sigma Partners
Sigma Partners, a high technology venture capital firm with over a billion dollars under management, helps entrepreneurs transform ideas into substantial, profitable businesses. Our partners have experience as successful CEOs, entrepreneurs and technologists. With this deep operating and technical insight we help build teams and strategies that produce sustainable value and successful outcomes. We were early investors in companies such as Cascade, Vignette, StorageNetworks, Internet Security Systems, and Tradex. CEOs of Sigma portfolio companies speak highly of how we leverage our network, our experience and our creativity. Our team also invests meaningful personal funds alongside the main fund, giving a sense of our active, long-term commitment to our portfolio companies. More information about Sigma Partners can be found at www.sigmapartners.com