Clontech - Source for codon-optimized fluorescent protein clones. A lot of useful information about using fluorescent proteins, including spectra.
Chroma - Filter sets for fluorescence microscopy. Specialized filter sets for dual FP imaging and FRET.
Invitrogen/Molecular Probes - The mothership for fluorescent cell probes. An enourmous amount of information including molecular structures, spectra, references, images, and detailed descriptions of probe use.
LOCI - Laboratory for Optical and Computational Instrumentation. Freeware for manipulation and analysis of 4D image data sets.
3D laser scanning confocal microscopy - Collection of imaging software links for a variety of platforms compiled and annotated by Lance Ladic at UBC.
ImageJ - Wayne Rasband's free and versatile imaging program for the Macintosh. Be sure to check out his new Image/J package, a JAVA-based application.
GFP-related lab sites
GFP Applications Page - Great set of GFP-related links compiled by Wallace Marshal at UCSF.
Plant GFP sites
Haseloff lab - Excellent site featuring GFP enhancer trap lines and patterned expression of transgenes in the analysis of Arabidopsis root development.
Hansen lab - Plastid dynamics studied with GFP.
Hawes lab - Plant golgi labeled with GFP.