I did a post for the Moz main blog on XML sitemaps, all the ways people do them wrong, and how to use them to diagnose indexation issues.
Read the full post here
Moz published my blog post
on techniques for leveraging Panda to make your product feed-based website stand out, both to Google and to end users.
I filmed this about 2 weeks ago while at MozCon
Full transcription, and a lively discussion in the comments is here
Przemyslaw Cwik from the Polish website RynekDomen.pl (which focuses on the domain name business) interviewed me in this Q&A session
regarding domains and the state of SEO today.
Check out my story on customer service gone wild here