University of California
Ucmp: Introduction to the Archaea
Berkley offers an introduction to archaebacteria--ancient bacteria--including the history of the topic, scientific findings, and where to find archaeans. Includes images and links.
American Institute of Biological Sciences
Action Bioscience: Malaria, Algae, Amoeba and You: Eukaryotic Relationships
Researchers are considering more recent findings of eukaryotes and their phylogeny. Investigate the insights to understand that there may be more progress found in determining the relationships to other eukaryotes.
University of California
Ucmp: Introduction to the Eukaryota
The huge diversity of the Eukaryota is described, including what has been preserved in fossils. The section, "More on Morphology", explains the biology of eukaryote cells in detail.
Wikimedia
Wikipedia: Fungus
Wikipedia provides detailed information on fungus, including a classification chart and hyperlinked table of contents.
University of California
Ucmp: The Biosphere: Life on Earth
Learn about different forms of life that coexist with us on Earth. This Berkeley article provides links to brief write-ups on the three domains of living organisms: Eukaryota, Bacteria, and Archaea.