This is the leftbar. Should be in the left side.
This web page allows the user to following ships and vessels based on AIS messages received from the marine vessels. The AIS messages are received and the ship/vessel positions are displayed on the map (google maps).
This particular page (http://www.trackaship.com/index.php) is optimized for viewing on larger computer screens (13 inches and up). The web page shows a number of polygons that are viewable at low zoom level. Once clicked they will zoom in on the map and diplay any vessels or ships within the selected area.