SAILS Library Catalog: A good place to start your research. 

Online Databases: The Massachusetts Board of Library Commissioners licenses electronic resources for use by all Massachusetts residents from their local libaries or their home computers with Internet access. They include digital versions of newspapers, magazines, books, encyclopedias and other reference works. These databases are published by reliable companies with timely facts verified by experts, including the information you need to cite these resources in a bibliography.

Web Resources by Subject: Websites organized by subject to assist you with online research.