Personalized Search - is becoming more popular with Googlers - with 10's of millions os users already. Google is already trying to user Session Memory to deliver more relevant results and corresponding ads. Although It’s hard to know what variables would be used through Personalized Search, Google currently leverages locations, atlas book and web history in delivering personalized results to users.
Inevitably, the subject of Social Media Networks was discussed - notably Facebook. Marissa noted the similarities between Google and Facebook -
-> Both have fully functional applications, a robust API and open platforms
Human Powered Search Engines, notably Maholao - have been in the news lately and Marissa was asked about Google's apparent position as an Algo Purist. She pointed out that although Algo results are very important, Google Coop does provide an opportunity for users to label results. Google Notebook also allows users to index information and provide commentary. So, in effect - Google leverages Algo results and the collective intelligence of it's user base.
All in all, it was an interesting keynote - although there are lot's of questions about how GUS and Personalized Search will impact Search Marketers.