Think, "how would a brand approach this?"
Write a piece of content? It should be part of an overall campaign for your site/brand. If I were you I would create:
-several web 2.0's link back to each piece of content, write a unique summary of the article with a link back to the article.
-Do niche no-follow and follow blog comments.
-Create a summary ppt presentation and submit it to slideshare sites.
-Create some sound bites and get a sound file link.
-Look for wiki content that needs links, incorporate the content into your content if you can, a wiki link is great authority.
-Doing niche guest blogging with sites that allow deep contextual links.
-Find influencers and sharers in your niche, using buzzsumo or ninja outreach, and send em a tweet and email to check out the content (if it adds value)
-make an infographic of the content and submit to image sites and influencers and sharers in your niche.
-A couple of social bookmarks, and forum links should give you the diversity you need to promote your content.
Everyone recommends social shares, of course do that too!