Here's answer from answers.com : http://wiki.answers.com/Q/What_is_the_difference_between_DirectX_and_OpenGl_Google_Earth. DirectX is a Windows-only API for your video graphics card and OpenGL is a cross-platform API also supported on Windows.f you computers graphic card has to use you systems memory (RAM) then you would open using DirectX. This is microsofts way of letting you enjoy the 3D effects of many programs. When you first install and run GE for the first time, it should tell you which mode to open in and then set it as your default.
Aon has approximately 500 offices worldwide, serving 120 countries with 72,000 employees. In 2011, Aon was ranked as the largest insurance broker in the world based on revenue. Aon was the principal partner and global shirt sponsor of the Premier League team Manchester United F.C. from 2010 until 2014.
Aon (company) Aon plc is a British multinational corporation headquartered in London, United Kingdom, that provides risk management, insurance and reinsurance brokerage, investment banking, human resource solutions and outsourcing services.