Matt Cutts: How many search algorithm changes were made in 2009?
Topic: How many search algorithm changes were made in 2009? – Quick Answer: 350-400
Matt Cutts: Will having a site available on both IPv4 and IPv6 cause a duplicate content issue?
Topic: Will having a site available on both IPv4 and IPv6 cause a duplicate content issue? – Quick Answer: No
Matt Cutts: Should large corporations use rel=canonical on every page?
Topic: Should large corporations use rel=canonical on every page? – Quick Answer: They can, but fix the structure first. Be careful with it
Matt Cutts: Will Google suspect that useful links on our site are paid?
Topic: Will Google suspect that useful links on our site are paid? – Quick Answer: No
Matt Cutts: Why don’t you turn off the PageRank feature in the Google Toolbar?
Topic: Why don’t you turn off the PageRank feature in the Google Toolbar? – Quick Answer: People use it
Matt Cutts: How does Google handle pages with content that changes on each page load?
Topic: How does Google handle pages with content that changes on each page load? – Quick Answer: When Google crawls, it’s a snapshot in time. It might miss important links in a rotation