To interlink and functionize distributed social resources, sharing something common may be important. In this area the Inland Sea can be the object to be shared. We can share the image even with Siebold or sailors of Kanrin Maru. The importance of the sea can be defined by its blueness and sharability beyond the time.
http://maps.google.co.jp/maps/ms?ie=UTF8&hl=en&msa=0&msid=116572915995856921863.00045e802e1052f973e4d&z=8