Matt Cutts: Will showing recent posts on my homepage cause a duplicate content issue?
Topic: Will showing recent posts on my homepage cause a duplicate content issue? – Quick Answer: A teaser or title is ok, not the whole post
Matt Cutts: What has been the biggest surprise of 2012 for you and your spam team?
Topic: What has been the biggest surprise of 2012 for you and your spam team? – Quick Answer: People falling for snakeoil SEO promises
Matt Cutts: Are shortened URLs treated differently than other redirects?
Topic: Are shortened URLs treated differently than other redirects? – Quick Answer: Yes
Matt Cutts: Are Google SERPs moving to Ajax, will it affect analytics?
Topic: Are Google SERPs moving to Ajax, will it affect analytics? – Quick Answer: It may affect the referrer data in analytics programs
Matt Cutts: Why does Google show multiple results from the same domain?
Topic: Why does Google show multiple results from the same domain? – Quick Answer: If the site has multiple pages that are a really good match for the query.
Matt Cutts: Is it better to have keywords in the URL path or filename?
Topic: Is it better to have keywords in the URL path or filename? – Quick Answer: URL Path but mainly for UX