Google Ngram Viewer...

Relates how often certain words appear in books in different years in history. Could be a useful tool for the Keyword Kops.

Case sensitive, as you see.

That isn't the result I expected at all for that. "Black" is to generic.

Not what I was expecting.

http://ngrams.googlelabs.com/
Case sensitive, as you see.
That isn't the result I expected at all for that. "Black" is to generic.
Not what I was expecting.
http://ngrams.googlelabs.com/