Urban legends and sundry anti-virus makers keep us alerted to hoaxes. What about viral health stories? Yes virginia, it's work checking "Behind the Headlines" at NHS Choices before spamming your friends with the latest miracle cure or coffee crisis. Here's the cola crisis analysis. http://www.nhs.uk/news/2009/05may/pages/colasapsmusclestrength.aspx. Their bottom line? Be more worried about the sugar effects on teeth and diabetes!

Prime Obsession; Euclid's Window; The Code Book: Singh; The Higher Arithmetic: Davenport; Anything by W W Sawyer; Seconded Men of Mathematics: Bell