I was fairly new to using forums for traffic when I first wrote this series. It's been a few months and I'll like to share something else I have noticed:
Forums are a great place to get content and ideas for content.
I'm not suggesting you use other people's posts/articles without their permission--I've never done that and never will. But here are some ways forums help you write/generate content:
Questions: You can see some of the most commonly asked questions about your topic.
Videos, pictures, etc: You may find a youtube video or other free content that you didn't know existed.
Guest posts: Other forum members are often good candidates for writing guest posts for your blog.
News/Announcements: News articles, research and events related to your topic are often posted on forums.
These are a few ways forums have helped me with content.