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Hi, I'm going to answer with 2 separate and very excellent blog posts that can answer the question much better than I can: http://seogadget.com/link-auditing/ http://www.stateofdigital.com/step-by-step-guide-finding-low-quality-links/ There are also a number of automated tools out there link Link Detox, but a manual review is always necessary before disavowing links. Also keep in mind that although Panda might have some backlink elements baked in as part of the algorithm, most people consider Panda to be mostly caused by on-site issues, such as duplicate content. You may want to do a bit of digging into recovering from Panda penalties, including removing thin and duplicate content, and improving on site experiences, before removing links. Hope this helps! Best of luck with your SEO.

I'm pretty sure if you just chop off the last tag, , you are going to be perfectly fine. There should be one canonical tag and it should point to the URL of the original document or the version that you want search engines to view as the main document.

There is only one article, but 2 unique links to it.  In most cases we do know how they are created, but don't have a solution for it.  In the meantime, we need to redirect those urls to the correct url.

Maybe just a little more confused <g>  Thanks for the assist.</g> The 2 sites are quite related as to the nature of the content.  Perhaps doing a domain 301 redirect might be the best choice. We're flying blind here. Clearly traffic dropped significantly but we're out here trying to fix what we are not even sure is broken.