The science of spectroscopy is the study of the interaction of radiated energy and matter.
This includes the viewing light as it passes through a prism.

Only suggest sites here that focus on the science of spectroscopy.

Commercial instrument supply sites should be suggested to
Instruments and Supplies: Laboratory Equipment: Spectroscopy.

Websites for societies and non-profit organizations promoting the understanding and application of spectroscopic and spectrometric techniques.

Although many research groups use spectroscopy as a tool, this category is reserved for those that compare a variety of spectroscopic and spectrometric techniques, including a diverse range of applications.