There's a wealth of articles, stories, and statistics here:
http://www.randonneurs.bc.ca/
Especially noteworthy is "Brestward Ho!" from the pen of the great cycling journalist J.B. Wadley (from his book "Old Roads and New"), an account of PBP 1971:
http://www.randonneurs.bc.ca/
Enjoy!
Mordecai Silver
NYC