The way you say it it looks like you will be spamming. I would advice you against it. Submit your forum to the search engines and then you can do the link exchange thing with other webmasters.
there are plenty of places you can publish your content and submit your URL. article directories, link directories, social bookmarking sites, relevant blogs, just to name a few.
it looks like you are going to spam, by this you will get penalized by search engines so go with a safe hand and post your website link to value added web directories and post articles and get backlinks for your website
You can submit your site to plenty of places, social bookmarking/networking sites, press releases, arrticle directories and so on. If in doubt always check the T&C before doing so. You can also leave comments on popular blogs but be sure to add value and refrain from doing "thanks for this" type comments as they are useless. http://www.im-wizard.com/how-to-get-backlinks-to-your-website/
try to get backlinks from social bookmarking , press release , article submission , forums and classifieds
Hi, To get traffic you can submit your site at so many places.. Blogs Article Directories News Forums Social Networking and book marking Classifieds commenting
The best way is to create "mini-sites" and point all of them to your main site. Where do you create these mini-sites?... At Web 2.0 properties such as Squidoo.com, Blogger.com, etc..
create some blogs in popular blog sites with good content..smo and press release can also help you the most...