The Royal Photographic Society was founded in 1853 'to promote the Art and Science of Photography', a mission it continues to this day in the United Kingdom and through its considerable overseas membership. http://www.rps.org/

UPI is a truly international photographic organisation – with UPI inspired and managed BY photographers and managed FOR photographers. http://www.upiphoto.com/

The Hellenic Photographic Society (HPS) was established in 1952 as a non-profit organization based in Athens and is the oldest photographic club in Greece. The aim is to develop the art of photography pursued by all appropriate means, such as courses, lectures, workshops & exhibitions http://www.efe.com.gr/

The Cretan section of the Hellenic Photographic Society (H.P.S.) was founded in Iraklio in 1964. Love for the art of photography prompted a group of people to set as their goal the further expansion of this art form, along with the initiation into its secrets of as many others as possible. http://www.efecrete.gr/

With more than 22.000 members, DPGR is the largest Greek portal for Photography. Founded in 2002 Digital Photography Greece, [DPGR] promotes the art of Photography in Greece. http://www.dpgr.gr/

Spyros Kouris Photography page in Facebook http://www.facebook.com/spyros.kouris.photography

Flickr is an image hosting and video hosting website, web services suite, and online community that was created by Ludicorp in 2004 and acquired by Yahoo! in 2005. http://www.flickr.com/