Bill Gates, technologist, business leader, and philanthropist, is also an immensely curious and engaged thinker who is interested in a range of seemingly intractable topics and problems. On Gates Notes, his personal blog, readers will find notes across such complex subjects as Saving Lives, Energy Innovation, and Improving Education. The home page is arranged into three easy-to-scout categories: Recent Posts, Popular, and Reading List, where Gates offers his thoughts on the books he's reading. Readers may also explore the site through such topics as Agriculture, Foreign Aid, HIV-AIDS, Polio, Vaccines, Big History, and many others. With his unparalleled access to brilliant thinkers from around the world, Gates engages many fascinating perspectives on this site.