Berimbau
Article by Richard P. Graham and N. Scott Robinson covering history, popular and traditional Brazilian use, and recent developments.
Capoeirista.com: Berimbau
Photograph, description, and audio samples of the capoeira rhythms. [English/Portuguese]
DrumsOnTheWeb.com: Frank Colon's Informal Les
Introduction to playing the berimbau.
Planet Capoeira: Know Your Berimbau
Illustrated guide to stringing and playing the instrument.
Rhythmweb: The Brazilian Berimbau
Description and illustration, with links.
The Art of Building the Berimbau
Covers traditional and modern materials and methods.