Yellow markers are cards I sent, but have not been recieved yet, green markers are the locations I sent a card to, and white markers are locations I recieved one from. (red is where I live)
Mouseover a marker to see its contents, click on a marker to zoom into that location
Click elsewhere on the map to centre it. Drag & drop on the map to pan
Use the mouse wheel (or the zoom control) to zoom in and out.