Bukkit

As the author of a building

1. Create a sign near your building: 1st line is [Score], 2ed line is the name of your work.
2. Sign your name: your name will display in 4th line automatically.
3. Ask admin to open this score sign for you.
4. Inform other players of your work, and let them to give it a score.
5. Ask admin to close this score sign to get a final score. If the score is high enough, you will win money.

As a viewer

1. Find a score sign which is open. Look at it.
2. Use /src <score> to pay some money and give it a score.
3. After the score sign being closed, you will win some money if your score is near to the final score.

As an admin

1. If some one wants to open a score sign, make sure it is reasonable and use /scr open to open it.
2. If some one wants to close a score sign to watch the final score and get money, punch the sign to check the final score and use /scr close to close it and distribute rewards.

More Details About Score and Money

Refer to Formulas.