» Cambridge Heart, Inc.    Develops equipment for non-invasive cardiac diagnostics. Includes detailed information for physicians,patients and investors, with contacts in Bedford, Massachusetts. (OTC: CAMH)    http://www.cambridgeheart.com/

» Cardio-Vascular Sales    Dealers and distributors of refurbished used echocardiography and ultrasound equipment or systems, transducers, parts and service repair.    http://www.cvsales.com/

» Echo-Web    Online Education, CMEs, CEUs, job opportunities, career connections, online resumes, conferences and seminars, echocardiography links, technology news, and other materials for echocardiographers.    http://www.echo-web.com

» Medical Positioning, Inc.    Manufactures and markets Echocardiography and Cardiology patient imaging tables.    http://www.medicalpositioning.com