Here's the tool: http://ngrams.googlelabs.com/

I just found that misunderestimate was not invented by Bush but the word predates him by a century http://ngrams.googlelabs.com/graph?content=misunderestimate&...

Here's what I've done with it: http://moultano.blogspot.com/2010/12/history-through-google-...

This tool is absolutely amazing.

Here's the original HN submission, which links to the full-text of the article:

http://news.ycombinator.com/item?id=2013453

I rather enjoyed getting this link in my twitter stream, a comparison of 'morals' vs. 'breasts': http://ngrams.googlelabs.com/graph?content=morals%2Cbreasts&...

The rise and fall of a technological era (steam): http://ngrams.googlelabs.com/graph?content=steam+hammer%2Ctr...

And the change from 1900's technology to 2000's technology illustrated: http://ngrams.googlelabs.com/graph?content=electronic%2Cradi...

:D

Outstanding! http://ngrams.googlelabs.com/graph?content=business,marketin...