Here are some quick tips;
Advertise your forum on other forums or website (as you do now, on WJ).
Spruce your forum up and make it fancy and unique.
Encourage your members to promote your forum.
Try your best to shine the light on all your members.
Do everything in your power to keep your forum active.
Be a dual poster. - This is where you create multiple accounts yourself and use them all so it seems like your forum is active.
Create contests. You could for example give someone moderator status for whoever helped out the most or something.
Link to other websites on similiar topics. Linkin is a prime way to get noticed.
Arrange for you topic to get into the newspaper or other periodiclas.
Optimize your SEO. To do this, select keywords used in the discussion of your topic and include them in content pages that will draw in both search engine operators and reader. SEO optimization will get your site noticed and effectively promote your forum.
I have previously made a few threads about how to get traffic and similar to your own forum.
You can take a look at them for even more information.
Good luck.
