annotazioni, fonti e crediti per i fotografi
(le cui foto sono pubblicate ciascuna sotto la relativa licenza Creative Commons)
#1 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/7407541354);
#2 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5351085126);
#3 - Foto di Gayle Haider (www.flickr.com/photos/7507886@N07/4663098597);
#4 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/7291816858);
#5 - Foto di Luca Volpi (www.flickr.com/photos/luca_volpi/5427258577);
#6 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5774414846);
#7 - Foto di Steve Corey (www.flickr.com/photos/stevecorey/2860399194);
#8 - Foto di Craig Moe (www.flickr.com/photos/60445767@N00/563455958);
#9 - Foto di Bev Sykes (www.flickr.com/photos/basykes/2524237813);
#10 - Foto di Doc Searls (www.flickr.com/photos/docsearls/155071616);
#11 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5796962519);
#12 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5879701776);
#13 - Foto di Jens De Groot (www.flickr.com/photos/jensjeppe/1108184664);
#14 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/6493749397);
#15 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/6829739084);
#16 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/3556920873);
#17 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/6823764150).
