http://www.salon.com/tech/machinist/blog/2007/11/21/turkey_graph/print.html

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By Farhad Manjoo
Nov. 21, 2007 |

The picture above is from Google Trends, the fun tool that lets you measure the popularity of various keywords on the search site.
The blue line shows a spike in searches for "turkey" every year on Thanksgiving, followed by another smaller spike around Christmas; the red line, measuring the popularity of the search term "diet," shows that come January, many of us are looking to turn over a new leaf.
Thanks to Philipp Lenssen of Google Blogoscoped for pointing this out. Philipp found it on Reddit, where folks noted many other interesting search graphs:
Pokemon vs. Ron Paul vs. Hillary Clinton vs. John Edwards.
Hangover (check out the New Year's spike).
-- By Farhad Manjoo