Editing Image sharing (section)

===Geotagging===
{{Main article|Geotagging}}
Geotagging a photo is the process in which a photo is marked with the geographical identification of the place it was taken. Most technology with photo taking capabilities are equipped with GPS system sensors that routinely geotag photos and videos. Crowdsourced data available from photo-sharing services have the potentiality of tracking places. Geotagging can reveal the footprints and behaviors of travelers by utilizing spatial proximity of geo-tagged photos that are shared online, making it possible to extract travel information relating to a particular location.<ref>Kou, N. M., U, L. H., Yang, Y., & Gong, Z. (October 01, 2015). Travel topic analysis: a mutually reinforcing method for geo-tagged photos. Geoinformatica : an International Journal on Advances of Computer Science for Geographic Information Systems, 19, 4, 693–721</ref><ref>Xu, Z., Chen, L., & Chen, G. (May 01, 2015). Topic based context-aware travel recommendation method exploiting geotagged photos. Neurocomputing, 155, 99–107.</ref> Instagram, Flickr, and Panoramio are a few services that provide the option of geotagging images. Flickr has over 40 million geotagged photos uploaded by 400 thousand users, and still growing at a rapid pace.<ref>García-Palomares, J. C., Gutiérrez, J., & Mínguez, C. (January 01, 2015). Identification of tourist hot spots based on social networks: A comparative analysis of European metropolises using photo-sharing services and GIS. Applied Geography, 63, 408–417.</ref> Some sites including [[Panoramio]] and [[Wikimedia Commons]] show their [[geocoded photograph]]s on a map, helping the user find pictures of the same or nearby objects from different directions.