BioOne
A collection of biological journals. Broad topics covered are biology, ecology, and environment with more specific emphasis on systematics, botany, mammalogy, plant science, conservation biology, toxicology, agronomy, ornithology, limnology and taxonomy. Coverage: 2000-.
Environment Complete
Provides coverage in applicable areas of agriculture, ecosystem ecology, energy, renewable energy sources, natural resources, marine & freshwater science, pollution & waste management, environmental technology, environmental law, urban planning, and more. Coverage: 1901-.
GreenFILE
Covers aspects of human impact to the environment. Includes scholarly, government and general-interest titles on global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more. Indexing and abstracts, with some full text. Coverage: 1940-.
Science Citation Index
A multidisciplinary index, with searchable author abstracts, covering the journal literature of the sciences. It indexes more than 5,700 major journals across 164 scientific disciplines, covering approximately 2,100 more journals than its SCI print and CD-ROM counterparts, with all cited references captured. Some of the disciplines covered include: agriculture, neuroscience, astronomy, oncology, biochemistry, pediatrics, biology, pharmacology, biotechnology, physics, chemistry, plant sciences, computer science, psychiatry, materials science, surgery, mathematics, veterinary science, medicine, and zoology. Coverage: 1974-.