1) The document discusses how social media is impacting search engine optimization and how search engines are beginning to value social signals. It notes that links used to come from technical influencers but now come more from average users via social sharing. 2) It introduces the concept of a "share graph" that search engines are using to measure sharing activity across social networks and determine authority and trust. 3) It emphasizes that social media and search engine marketing can no longer be separate and that integration is key to success in getting found online.