I'm thinking about opening post contest and giving out domain .net, .com, or .org of your choice..for the prize.. before I begin the contest, I'd like to ask on how many days should it run for? Would it be okay for a month?
It's based on activity of your forum mainly. If you know you will get alot of people interested than go for it. Otherwise wait for a while until your forum picks up on activity. I dislike forums that have contests with very low member count or even activity count. There are a few contests each week at different forums. People would rather do one of them.
The thing is though I'm giving out a domain of people's choice for the prize. I'm sure people would love to take part in it as I have seen a lot forums with free domains and not paid ones. What concerns me is the time. How long should I run this contest for? and the reason I am thinking about this is to pick up activity. 🙂
Whichever you want. People might like this type of thing as only one contest gives out one domain so they have more of a chance of winning. 😉 Then it's your genre that they worry about. 😛 Your idea is good though.