Real Body Work is primarily a Massage and Wellness DVD website but also has educational articles and apps about the human body as well.
Before taking your next business trip, you can download an app for researching muscle trigger points that can cause pain. This app can be purchased from iTunes for $2.99 for the iPhone and iPad. There is also an android version available from the Real Body Work site.
This application allows you to view over 70 muscles, their patterns, and most common trigger points to help you understand where your source of pain is coming from.