Google Earth	www.google.gr/intl/el/earth/
Wikipedia	http://el.wikipedia.org/
Spetses.gr	www.spetses.gr
Spetses wordpress	spetses.wordpress.com
Spetses Marathon	spetsesmarathon.com/
Spetses Classic Yacht Race	classicyachtrace.com/

Also some elements from the book "Unexplored Spetses" from the author Petros Xaritatos, publihsing company tel. 210-3640723