The web site give a brief introduction to the equipment with nice picture. It listed out the terminology used in MS and their definitions (you might want to take note of the definitions). Spectra of a few of organic compounds are available. Should not go beyond the first page unless you are really keen to learn more about the technique.
This web site serves as an introduction to the theory and practical applications of mass spectrometry. Within each section, you’ll find useful information along with graphics and thought-provoking questions. If a specific article is mentioned within the text, that reference is given at the end of that section. Otherwise, the text is compiled from the references listed below. Also listed below are a few web sites that I find particularly helpful. Enjoy!
3. Understanding Chemistry - Mass Spectrometry Menu
The web site give a comprehensive explanation on how a MS work. The presentation of the web site make reading it very present. The content is very relevant to your study.
4. Mass Spectrometer Simulator
You need "Shockwave" plugin before you can see the simulation. Highly recommended.