What+is+Google?+How+Does+It+Work?

How Does Google Search Work? media type="youtube" key="BNHR6IQJGZs" height="345" width="560"

"Beware of online search-bubbles" (TED Talk) media type="youtube" key="B8ofWFx525s" height="345" width="560"

What THEY say: How Google updates its search algorithm: media type="youtube" key="J5RZOU6vK4Q" height="345" width="560"