This index attempts to provide a sampling of "the best of the Web" on the diverse eukaryotes included within the protistan universe. Emphasis is on sites that provide direct access to scholarly information on the morphology, ultrastructure, molecular biology, taxonomy, ecology and physiology of these organisms.
Not all valuable sites are listed here. Some of the sites listed on these pages are themselves indices, for example the Pfiesteria metaindex. These indices should be consulted for information on the topic areas that they cover. We have preferred, whenever possible, to highlight active research programs and important services (such as culture collections). As a rule, commercial sites without significant scientific content are not indexed.
Email us if you have, or know of, a site that could appear in PID.