They can be about anything (from math to PHP, from findind much thnigs about something strange on the web to what you want), but that can't be resolved simply looking on a book or a single web site.
This an example of how they should be organized
Quote
Join fee: 5 credits (1 for transfering fee)
Prizes: 1st place=50% of credits collected
2nd place=30%
3rd place=20%
Minimum "players": 5
Aids: 1 aid every 4. It can be given to hosted members with at least 75 posts and active in the last two weeks, to this will be given the 5 credits fee, if they will lose, they will pay the fee, while they will win, the fee will be deducted from the prize
My idea is that anyone that match some requirements (for example: not hosted and never hosted in last 4 months, at least 100 posts, active in last 2 weeks, moderators can allow someone that doesn't match the requirements) can start a competition in a new forum section (no post count, obviusly). Can exist rules that punish who steal credits, for example a 10% warn every 5 credits + 10 credits removed every 5 credits or something worse.
But it's important that not only moderators or very old members can organize them, they should be opened to at least 10-20% of members.
This is my suggestion, and I think that you can make something similar. And this will bring you more visitors and it will be a new way to enjoy for members.














