i'm planing to create a forum which might just be really good domain yet i'm not sure how to make it busy. any tip?

1. Try to provide fresh and original contents, drive visitors from search engine.
2. Simple awarding system is necessary, like sign-up award, post-new-thread award and login-everyday award, etc.
3. Do some off-line SEO work, handbill is a good choice.
4. On-line SEO.
5. After you got certain visits everyday, you may orgnize some test or game in your furum.

The topic(s) and the members are what makes a forum "great" NOT the domain name.

Optimising won't drive traffic, good promotion and advertising is what will drive traffic and any search referrals resulting from the promotion is merely a bonus.