New Opportunites with Google Social Search

Quite recently, I saw a video(embedded below) from Google on Social Search. Although it seems pretty impressive and good, but I have some questions/thoughts from Marketing/SEO point of view: Since users will now be able to see suggestions/blogposts/tweets etc from our contacts, so this opens are whole new platform for Social Media Marketing i.e. if you have established yourself as a friendly guy in any popular social media platform like Facebook, and you are an open Networker i.e. who adds other people as friends without any previous acquittance, then you have a very huge opportunity that you can influence and market a huge number of audience in many diverse niches, all you need is quality content on various topics with a touch of SEO and Google will do the rest...