When you have collected the indicated amount of Stamps the corresponding bonus board will become an available option.
Unlock Future Board:
Collect 6 stamps (6 Properties owned).
Unlock Sweet Board:
Collect 22 stamps (22 Properties owned).
Unlock Cheese Board:
Collect 56 stamps (2 boards complete).
Unlock Jungle Board:
Collect 84 stamps (3 boards complete).
Unlock vice Board:
Collect 112 stamps (4 boards complete).
Unlock Deco Board:
Collect 168 stamps (6 boards complete).
Unlock Cardboard Board:
Collect 224 stamps (8 boards complete).
Added by: Sanzano Nov 28th 2008, ID#31262