Vibrationdata.com - http://www.vibrationdata.com - Consulting and educational services in: acoustics; shock and vibration; signal processing; and dynamic data acquisition and analysis.
Newleap - http://www.newleap.com - Develops acoustical hardware and software for scientific research in the underwater environment
Aerospace Online - http://www.aerospaceonline.com - Daily news and product updates for professionals in the aerospace industry with information on manufacturing, technology, equipment, supplies, and discussion forums, online chat, newsletters and software.