The social media platform founded by Mark Zuckerberg in 2004 is Facebook. Initially launched as a social networking site for college students, Facebook quickly expanded to include users from all around the world. It allows individuals to create profiles, connect with friends, share content, and engage with various media formats. Over the years, Facebook has evolved into a comprehensive platform, integrating features such as messaging, groups, and live video streaming. Today, it remains one of the largest social media platforms globally, influencing how people communicate and share information online.