Matt Cutts: Does Googlebot care about valid HTML?
Topic: Does Googlebot care about valid HTML? – Quick Answer: No
Matt Cutts: What role does being in DMOZ play in rankings?
Topic: What role does being in DMOZ play in rankings? – Quick Answer: We sometimes take the DMOZ description and use it in your SERP listing
Matt Cutts: Can I flag spammy links to my site that I didn’t create?
Topic: Can I flag spammy links to my site that I didn’t create? – Quick Answer: No (At the time of video, you can now with the disavow tool.)
Matt Cutts: Is there a way to mark a section of a page as being less important for snippets?
Topic: Is there a way to mark a section of a page as being less important for snippets? – Quick Answer: No
Matt Cutts: Does Google use a set standard for manually removing webspam?
Topic: Does Google use a set standard for manually removing webspam? – Quick Answer: Yes
Matt Cutts: Will Google implement the ability to search with regular expressions?
Topic: Will Google implement the ability to search with regular expressions? – Quick Answer: Unlikely. It’s not worth Google’s time