Encyclopedia of Life Sciences
According to its publisher, Macmillan, the Encyclopedia of Life Sciences is "the most ambitious single reference source ever to be published in the biological sciences."
Topics covered by the ELS include biochemistry, cell biology, developmental biology, ecology, evolution and diversity of life, functional and comparative morphology, genetics and molecular biology, immunology, microbiology and virology, neuroscience, plant science, science and society, and structural biology. The articles are tagged as introductory level (I), secondary (advanced) level (S), or special essays (E).
Content: Encyclopedia articles.
Coverage: continually updated.