Investors

Cargill Ventures (www.cargillventures.com) invests in early stage technology-driven companies that enhance business processes, growth and innovation in global industries relevant to Cargill. Cargill Ventures maintains offices in San Mateo, Calif., and Minneapolis. It is a business unit of Cargill, www.cargill.com, an international provider of food, agricultural and risk management products and services. With 105,000 employees in 59 countries, the company is committed to using its knowledge and experience to collaborate with customers to help them succeed. Additional information about Cargill Ventures is available at: www.cargillventures.com.

Crescendo Ventures is a global venture firm that provides early-stage funding and growth resources to high-potential companies in the communications and enterprise infrastructure industries. By collaborating with entrepreneurial teams to grow market-leading companies, Crescendo Ventures uses its industry expertise, team-based development model and global network to help high-growth companies achieve their full potential. Founded in 1993, Crescendo Ventures manages more than $1 billion from its headquarters in Palo Alto, California and offices in Minneapolis and London. For additional information on Crescendo Ventures or its portfolio companies, please visit www.crescendoventures.com.

Founded in 1995, Foundation Capital is a venture capital firm committed to supporting entrepreneurs and their companies, targeting innovative opportunities in telecommunications and networking; Internet infrastructure; and enterprise software. Foundation Capital funds total over $1.1 billion and include Harvard, Yale, CalTech, the Hewlett Foundation and MacArthur Foundation as investors. Paul Koontz is a general partner and also led investments in, and serves on the boards of, United Online, Financial Engines, Apexon, Oberon Financial Technology, Pacific Edge, Vivecon and CloudShield. He also serves on the board of the Stanford University DAPER Fund. For more information, visit www.foundationcapital.com or contact: Tim Turpin (415) 392-8282, tim@outcastpr.com.

In-Q-Tel is a private, independent, enterprise funded by the U.S. Central Intelligence Agency. Launched in 1999, In-Q-Tel's mission is to identify and invest in companies developing cutting-edge technologies that serve United States national security interests. Working from an evolving strategic blueprint that defines the CIA's critical technology needs, In-Q-Tel engages with entrepreneurs, established companies, researchers and venture capitalists to deliver technologies that pay out in superior intelligence capabilities for the CIA and the larger Intelligence Community. www.in-q-tel.org

With more than $1.6 billion of cumulative committed capital, IVP is one of the nation's premier venture capital firms. Founded in 1980, IVP has invested in more than 200 privately-held companies, of which more than 80 have gone public. IVP has invested in such notable companies as Altera (ALTR), Aspect Communications (ASPT), Atmel (ATML), Borland (BORL), Cirrus Logic (CRUS), Clarify (CLFY), Concur Technologies (CNQR), FormFactor (FORM), Foundry Networks (FDRY), Juniper Networks (JNPR), LSI Logic (LSI), MMC Networks (MMCN), NetFlix (NFLX), Polycom (PLCM), Seagate (SGAT), Sequent (SQNT) and Tivo (TIVO). IVP has offices in Menlo Park, California, and San Francisco. IVP's website is located at www.ivp.com.