The Rise & Fall of “Yellow Pages”
Jumping on the bandwagon of Google’s new ngram thing that charts the use of words in books from 1800 to 2000. Here’s the chart for “yellow pages”
And here’s Google Insights chart for “yellow pages” search queries from 2004 to the present:
Looks like the Civil War killed “SEO” in it’s 1.0 phase (guessing they called it “one point naught” in those days):