Wish I had more time to break this newly granted Google patent down, but I have to run to catch the keynote address this morning at the SES conference. One of the authors of this granted patent was on a conference panel on personalization yesterday.
Invented by Glen Jeh, Taher H. Haveliwala, and Sepandar D. Kamvar
Assigned to Google
United States Patent 7,260,573
Granted August 21, 2007
Filed: May 17, 2004