Instagram is a photo and video sharing social media platform owned by Facebook. It was created in 2010 and is most popular among 18-29 year olds. Key features include sharing photos, videos, stories, messaging and video calling. Technology behind Instagram includes PHP, Django and PostgreSQL for the backend and HTML, jQuery and Facebook SDK for the frontend. While it didn't generate revenue initially, Instagram now makes money through sponsored posts, carousel ads, and ads on stories similar to Snapchat. However, surveys have also linked heavy Instagram use to increased anxiety, depression, and fear of missing out among teens and young adults.