Aaron Hillel Swartz, also known as AaronSw, was an American computer programmer, entrepreneur, writer, political organizer, and Internet hacktivist. As a programmer, Swartz helped develop the web feed format RSS; the technical architecture for Creative Commons, an organization dedicated to creating copyright licenses; the Python website framework web.py; and the lightweight markup language format Markdown. Swartz was involved in the development of the social news aggregation website Reddit until he departed from the company in 2007.