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I am getting Duplicate Content Errors reported by Moz on search result pages due to parameters. I went through the document on resolving Duplicate Content errors and implemented the canonical solution to resolve it. The canonical in the header has been in place for a few weeks now and Moz is still showing the pages as Duplicate Content despite the canonical reference. Is this a Moz bug? http://mathematica-mpr.com/news/?facet={81C018ED-CEB9-477D-AFCC-1E6989A1D6CF}

I'm currently in debate with our 508 compliance team over the use of alt tags on images. For SEO, it is best practice to use alt tags so that readers can tell what the image represents. However, they are arguing that these images should NOT have alt text as it doesn't add anything to the disability screen reader as the image text would be repetitive with the text on the page. I feel they are taking the "decorative" image concept in 508 compliance too far. It's intention is for images for bullets, etc that truly are decorative in nature and add no benefit to the reader. What is the communities thoughts on this? Have you ever run into scenario where 508 is attempting to ruin SEO? Usually the 2 play nicely.

It was recently brought to my attention that one of the PDFs on our site wasn't showing up when looking for a particular phrase within the document. The user was trying to search only within our site. Once I removed the site restriction - I noticed that there was another site using the exact same PDF. It appears Google is indexing that PDF but not ours. The name, title, and content are the same. Is there any way to get around this? I find it interesting as we use GSA and within GSA it shows up for the phrase. I have to imagine Google is saying that it already has the PDF and therefore is ignoring our PDF. Any tricks to get around this? BTW - both sites rightfully should have the PDF. One is a client site and they are allowed to host the PDFs created for them. However, I'd like Mathematica to also be listed. Query: no site restriction (notice: Teach for america comes up #1 and Mathematica is not listed). https://www.google.com/search?as_q=&as_epq=HSAC_final_rpt_9_2013.pdf&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&tbs=&as_filetype=pdf&as_rights=&gws_rd=ssl#q=HSAC_final_rpt_9_2013.pdf+"Teach+charlotte"+filetype:pdf&as_qdr=all&filter=0 Query: site restriction (notice that it doesn't find the phrase and redirects to any of the words) https://www.google.com/search?as_q=&as_epq=HSAC_final_rpt_9_2013.pdf&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&tbs=&as_filetype=pdf&as_rights=&gws_rd=ssl#as_qdr=all&q="Teach+charlotte"+site:www.mathematica-mpr.com+filetype:pdf