From September 1999 to July 2000, Ride was the president of the space news website, Space.com, a company that aggregated news about science and space on its website. She then became the president and CEO of Sally Ride Science, a company she co-founded with O'Shaughnessy, who served as the chief executive officer and chair of the board. Sally Ride Science created entertaining science programs and publications for upper elementary and middle school students, with a particular focus on girls. Ride and O'Shaughnessy co-wrote six books on space aimed at children, with the goal of encouraging children to study science.