Official Google answers to common SEO questions

Question:

How does Google use human raters in web search?

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Question	Views
What happens if I link to a good page that later becomes spammy?	1,772
Will Google remove a page that I don't like from its search results?	1,660
My SEO client is using shared hosting for one of their websites. When I checked other sites hosted on their server, I found some spammy websites. Will that affect ranking of my client's website?	1,195
Are Chrome's 'usage statistics' used in evaluating site speed?	944
I bought a domain 7 months ago. The website I put on it still doesn't show in the SERPs. Since 2000 it's had different owners – used by a co. in Oz, it's then served ads, then "for sale" with a company for 4ish years. Will it have trust issues in Google?	1,002
Does Google try to return results based on signals other than popularity?	1,564