Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
producer price index
A Proucer Price Index (PPI) measures average changes in prices received by domestic producers for their output. It is one of several price indices calculated by national statistical agencies.
Trivia about producer price index
The CPI is the Consumer Price Index & the PPI is this