PubMed was developed by the National Center for Biotechnology Information (NCBI). It was developed in conjunction with publishers of biomedical literature as a search tool for accessing literature citations and linking to full-text journals at web sites of participating publishers.

This database contains the leading agricultural journals published in North America. ProQuest Agriculture Journals offers the complete text as well as complete images from such journals as Agricultural Research, Forest Products Journal, Journal of Animal Science, Journal of Soil and Water Conservation and Plant Physiology.
Coverage: 1998 - current.

The Environmental Science Database is a cross-disciplinary resource of full-text content of global literature across this field and related disciplines. It provides the most complete collection of resources available to support research and learning in environmental science and related fields. Content is selected from several specialist topic resources in disciplines such as engineering, biotechnology, bacteriology, atmospheric science, ecology, and biology.