Badminton Alley [more]
Offers racquets, shuttlecocks, strings and accessories for badminton.
http://www.badmintonalley.com/

Badminton Warehouse [more]
Online retailer of badminton rackets, shuttlecocks and accessories. Offers a badminton racquet selection guide.
http://www.badmintonwarehouse.com

Hi-Qua Badminton [more]
Hi-Qua Badminton in USA. Shuttlecocks, racquets, and shoes. Direct from manufacturer. Mail-Order available. Club and School.
http://www.hiquasports.com/badminton/

Sosan [more]
Direct purchasing from this Chinese manufacturer of shuttlecocks and racquets; includes overview of shuttlecock components.
http://www.sosan.com/