Facebook CEO Mark Zuckerberg (right), software engineer Marc Andreesen and his wife Laura Arrillaga- Andreesen, chairwoman of the Silicon Valley Venture Fund, attend the Allen & Company Sun Valley Conference on July 11, 2011 in Sun Valley, Idaho. The conference has been hosted annually by the investment firm Allen & Company since 1983 and is typically attended by many of the world's most powerful media executives. Kevork Djansezian/Getty Images/AFP - 12 July, 2012