Building backlinks in a very niche industry, what to do when squeezed between brick walls?

[Deacyde]

So I have a site that operates in a very niche industry, reading all I can about building backlink, I've come out of the walls of text with a few tidbits, however they're not very helpful still, since the playing field is so small.

Looking at manufacturer's sites, finding broken links or typos even, pointing them out in hopes for backlinks only goes so far.

Guest blogging seems to have reached it's climax and is slowly rounding the toilet.

They're active in social media, but due to the niche market, a few likes is the best that can happen.

So most efforts these days are around creating helpful resources for users related to the products they sell.

What other ways would you suggest looking into for building meaningful backlinks with other sites?

In these niche markets, it seems very daunting to say the least, while competitors use their own sister sites for some backlinks, this site doesn't have any sister sites.

What has been some beneficial backlink tactics you've employed for niche market sites?

[EGOL]

If this is such a niche market then competition is probably low.  In that case I would start producing good informative content that attacks each of the valuable keywords in the niche.  If you can't build up, then build out.