Links

Links to information on the base of the natural logarithm, e :

Wolfram Research (Eric Weisstein)

Short History and Derivation (Presentation by Harlan Brothers, PDF [247KB])

e: The Story of a Number (Book by Eli Maor)

Mathematical Constants and Computation (Xavier Gourdan & Pascal Sebah)

The Fastest Formulas for e (Harlan Brothers)