Flickr is a photo sharing website and online community that allows users to upload, organize, and share photos. It has over 7 million registered users who upload over 5,000 photos per minute. Flickr revolutionized how photos are shared both for professional and amateur photographers. The community aspect is a key part of Flickr, with users tagging photos, commenting, and forming groups around interests. The strong online community also leads to real world meetups. While basic accounts are free, pro accounts provide more storage and capabilities for an annual fee.