Google ngrams - see the rapid increase for Google

Ngrams has data on word occurrences in books over a long timespan (1800 to 2008). A 1gram is just the word itself, a 2gram a two word combination and so on.

What's closer than trying this on mentions on search engines in books? They pretty much show the rapid rise of mentions of  'Google' compared to others like Bing, Baidu, Hotbot, Altavista, Wolfram Alpha (with the last two not even being found).

Take a look:


Definitely going to use this more!