"Red Tides" and Harmful Algal Blooms- This site is supported by the NSF, Woods Hole Oceanographic Institution and NOAA, and definitely is the place to start to learn more about harmful algal blooms.
Dinoflagellates- Much information and links on dinoflagellates.
Introduction to the Dinoflagellata- A page from the U.C. Berkeley Museum of Paleontology with information and figures of dinoflagellates, and links to more information.
Pfiesteria- Go right to the source for information on Pfiesteria piscicida at this site from North Carolina State University’s Aquatic Botany page. NCSU was the first laboratory to identify this microorganism.
