Matt Cutts: Are CSS-based layouts better than tables for SEO?
Topic: Are CSS-based layouts better than tables for SEO? – Quick Answer: Don’t worry about it
Matt Cutts: What do you think about cloaking?
Topic: What do you think about cloaking? – Quick Answer: Cloaking is bad. Very bad. Don’t cloak content
Matt Cutts: Will changing hosts cause any SEO concerns?
Topic: Will changing hosts cause any SEO concerns? – Quick Answer: Probably not
Matt Cutts: Why don’t 404 pages disappear immediately from search results?
Topic: Why don’t 404 pages disappear immediately from search results? – Quick Answer: They may come back soon
Matt Cutts: Will Webmaster Tools give examples of which links or pages caused a manual spam action?
Topic: Will Webmaster Tools give examples of which links or pages caused a manual spam action? – Quick Answer: They can’t show them all, but in time they plan to show around 3 links in messages to help diagnose the problem