Instagram was one of the first major photo-based social networks when it launched in 2010. By the end of April 2012, there were already over 100 million active users.
After recognizing its success and the potential for competition, Facebook purchased Instagram in April 2012. They paid a total of $1 billion dollars in cash and stock and used "the power of Facebook" to help the member base grow by an additional 23% in 2013. Today, the two networks are linked, allowing users on Instagram to post photos or videos directly to both accounts simultaneously.
Today, Instagram has surpassed Twitter in user activity, with over 500 million registered profiles. It has evolved into a well-rounded platform, featuring video posts, 24-hour stories, and live streaming.