In 1999, Gates wrote "Business @ the Speed of Thought", a book that shows how computer technology can solve business problems in fundamentally new ways. The book was published in 25 languages and is available in more than 60 countries. "Business @ the Speed of Thought" has received wide critical acclaim, and was listed on the best-seller lists of the "New York Times", "USA Today", "The Wall Street Journal" and on Amazon.com. Gates' previous book, "The Road Ahead", published in 1995, was at the top of the "New York Times" bestseller list for seven weeks.
Gates has donated the proceeds of both books to non-profit organizations that support the use of technology in education and skills development.
In addition to his love of computers and software, Gates founded Corbis, which is developing one of the world's largest resources of visual information - a comprehensive digital archive of art and photography from public and private collections around the globe. He is also a member of the board of directors of Berkshire Hathaway Inc., which invests in companies engaged in diverse business activities.