Introduction of fluorophores
Many fluorescent proteins can be purchased online through Addgene.
A wide array of synthetic fluorescent probes can be purchased online through Molecular Probes.
The following videos describe the properties of chemical fluorescent probes and fluorescent proteins:
Extensive review on fluorophores and their applications
Overview of fluorophores
Dye/protein spectral properties
Spectra viewer
Fluorescent proteins
Fluorescent highlighters