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Yes, they are: http://www.wordstream.com/articles/most-expensive-keywords

#20 is "cord blood"?! TIL that some people preserve their children’s umbilical cord blood in case the stem cells become medically useful someday.

Wait until you learn about placenta teddy bears: http://www.inhabitots.com/doing-it-for-the-kids-design-exhib...

(for the people who don't want to eat them)

Interesting, even though it's now 5 years old. I'd be interested in the evolution. Also, a pie chart? Really? I can't fathom who thought it'd be a good idea…

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