Why do people tag? motivations for photo tagging

The use of tags as means of sharing and organizing large amounts of information has been evolved significantly. The motivation for tagging on Flickr, Ames and Naaman categories the classes of tags into self, family & friends, and the general public of Flickr users. The self category involves the organization function, emphasizing organization and order, which are intended to facilitate future search and retrieval and the communication function which involves adding context to the image. The family & friends, category involves the organization function, which is intended to facilitate future search and retrieval by friends and family. The public category involves the organization function, which is intended to help the general public of Flickr users find the images. The communication function on Flickr, can be facilitated by means other than tagging such as, titles and captions attached to the photos, and sets that group photos together according to a theme chosen by the photo uploader.