How can crowd marketing benefit my website in Papua New Guinea?

I’ve been looking for effective ways to boost my website’s ranking and visibility in search engines, especially within Papua New Guinea. Crowd marketing, which involves placing links on forums, has been suggested to me as a solution, but I’m curious about how this strategy works specifically for this region. How can I benefit from using crowd links, and what are the best practices to follow? How can this help my website gain local exposure while building credibility with the community?