Access Science
Service = McGraw Hill

A collection of online science reference materials with access to all the articles, fully illustrated with thousands of illustrations, from the latest edition of the McGraw-Hill Encyclopedia of Science & Technology, Includes the latest Science News® headlines and biographies. Access Science
  American Chemical Society
Service = ACS

The American Chemical Society is the leading publisher of peer-reviewed research journals in the chemical and related sciences, serving scientific communities worldwide. American Chemical Society
  Biological and Agricultural Index Plus
Service = HW Wilson

Offers access to the core literature of biology and agriculture, much of it from peer-reviewed journals, featuring graphs, charts, diagrams, photos, and illustrations indispensable to science research. Biological and Agricultural Index Plus
  Blackwell Synergy
Service = Blackwell Synergy

As the online journals service from Blackwell Publishing, Blackwell Synergy includes full-text articles of over 850 journals, covering subjects throughout medicine, science, social science and the humanities. Blackwell Synergy
  Digital Sanborn Maps
Service = ProQuest

Sanborn maps are large-scale plans of a city or town, drawn at a scale of 50 feet to an inch. They were created to assist fire insurance companies as they assessed the risk associated with insuring a particular property. They list street blocks and building numbers - numbers in use at the time the map was made as well as previous historical numbers. Digital Sanborn Maps
  GeoBase
Service = OCLC

Worldwide literature on geography, geology, and ecology. Covers journals, books, monographs, conference proceedings, and reports. Includes over 600,000 records with abstracts. GeoBase
  GreenFILE
Service = EBSCO

GreenFILE offers well-researched information covering all aspects of human impact to the environment. Its collection of scholarly, government and general-interest titles includes content on global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more. The database provides indexing and abstracts for more than 384,000 records, as well as Open Access full text for more than 4,700 records. GreenFILE 
  MathSciNet
Service = AMS (American Mathematical Society)

Database of reviews, abstracts and bibliographic information for much of the mathematical sciences literature. Authors are uniquely identified, enabling a search for publications by author rather than by name. Contains over 2 million items and over 700,000 direct links to original articles. Bibliographic data from retro-digitized articles dates back to 1864. This web of citations allows users to track the history and influence of research publications in the mathematical sciences. MathSciNet
  ScienceDirect
Service = Elsevier B.V.

Includes ScienceDirect College- Physical Sciences and is the world's largest electronic collection of science, technology and medicine full text and bibliographic information. It offers a wide variety of features and content. ScienceDirect offers more than a quarter of the world's scientific, medical and technical information online. Over 2,000 peer-reviewed journals. Hundreds of book series, handbooks and reference works. ScienceDirect
  ScienceWeek
Service = Science Week

ScienceWeek is a free educational resource on the web. The archive contains thousands of reports in the biological and physical sciences, published continuously every week since 1997. The reports in ScienceWeek are selected to cross barriers between the sciences, to illuminate breakthroughs, ideas, concepts, policy, and historical aspects. Many reports include useful definitions of specialized terminology. Each new ScienceWeek report is amplified by the inclusion of one or more related reports, the group usually providing an extensive review of the subject, often including lengthy excerpts from new books in the sciences - excerpts of cross-disciplinary interest. ScienceWeek
  Today's Science
Service = Facts on File News Services

Accessible information on the latest developments in science for middle school through college. Articles include background information, useful Internet resources, and suggestions for further reading. It features overview articles linked to detailed news coverage, extensive use of illustrations, editorial cartoons, an automatic glossary, thorough linking to other FACTS.com databases, biographies of scientists and curriculum materials targeting multiple grade levels. Today's Science