Thought these might be useful in this discussion:

https://www.distilled.net/resources/optimize-your-serp-snippet-ctr/

http://www.catalystsearchmarketing.com/how-rich-snippets-can-improve-your-ctr

https://moz.com/blog/video-seo-post-rich-snippets

https://econsultancy.com/blog/61990-the-value-of-rich-snippets-and-structured-data/

My experience, they have an enormously positive impact.

While I generally agree with Alan above, if you're going to do recip links, I'd try to work them into the context of your site on different pages.

One link, linking to you from porn site? I don't think it will have any impact. If you think about it, if that caused a problem, you could just add links from porn sites to your competitors. Definitely don't link to porn sites, unless of course, you own a porn site.

What are you using to check for the back link? The BBB page contains the links and the page appears to be indexed in Google. Perhaps your link checking tool hasn't found the link yet.

Might moving domains have an impact on your organic search positions? In a word, yes.

Before you do any moving, spend some time searching around the Moz blog. There are a lot of great posts on the subject.  Here are a couple:

http://www.seomoz.org/blog/international-seo-where-to-host-and-how-to-target-whiteboard-friday

http://www.seomoz.org/blog/seo-guide-international-versions-of-websites

http://www.seomoz.org/ugc/international-seo-part-2

@laurentjb Hi!

In my experience:

• Find real local businesses that topically overlap with your business.
• I wouldn't focus on DA or "spam scores."
• Instead of offering to guest post, I might find ways to do content marketing collaborations.
• Careful with the reciprocal linking (Excessive link exchanges are viewed a spam).

If you struggle finding businesses that topically overlap, I've found that just focusing on geographic relevance can be sufficient.

Find ways to collaborate with other local business leaders.