Sign the Giant Web Page

This Shockwave map lets users zoom in on any part of New Zealand and claim a virtual one-kilometre square. Fans can sign their name, write a message or draw a picture on these squares. The location of the filled squares can be seen when zoomed out, and the individual messages can be viewed at the closeup zoom level. Take a look!

All the drawings are saved in a database and loaded back using ASP on the server. The data is compressed and transmitted using run-length encoding.