Bill Gates is co-chair of the Bill & Melinda Gates Foundation. Along with his wife and co-chair, Melinda, they collaborate with the foundation’s grantees and partners to expand opportunity to the world’s most disadvantaged people. They also participate in national and international events and travel extensively to champion the foundation’s primary issues – global health and ensuring that low-income minority students are prepared for college and have the means to attend. As cofounder of Microsoft, Gates led the company to become the worldwide leader in business and personal software, services, and solutions. Today he serves as the company’s chairman and advisor on key development projects. Gates also founded Corbis, which is developing a comprehensive digital archive of art and photography from public and private collections around the globe.