Here's the link to the NYTimes.com story: http://bits.blogs.nytimes.com/2012/03/02/big-datas-grassroots-revolution/
Link to Hal Varian's talk "Using Google Data for Short-Term Economic Forecasting" at Strata 2012: http://www.youtube.com/watch?feature=player_embedded&v=-I8acYHQ0v0