http://www.google.com/trends/ http://www.google.com/trends/ Hal Varian, Google's chief economist, has been talking about using Google Trends this way for a whi

http://www.google.com/trends/ http://www.google.com/trends/ Hal Varian, Google's chief economist, has been talking about using Google Trends this way for a while: http://www.frbsf.org/economics/conferences/1103/Varian-part_1.pdf http://www.frbsf.org/economics/conferences/1103/Varian-part_...