Letterboxd is an online social networking service co-founded by Matthew Buchanan and Karl von Randow in 2011. It was launched as a social app focused on sharing opinions about, and love of, film, and is maintained by a small team in Auckland, New Zealand. The site is meant for sharing its members' tastes in films. Members can use it as a diary to record their opinions about films, keep track of films they have seen in the past, and showcase their favourite films on their profile pages. Films can be rated, reviewed, and tagged with relevant keywords.