Academic Search Ultimate, the flagship database within the Academic Search family, boasts an extensive collection of 10,033 active full-text journals, a significant portion of which undergo peer review and are featured in prominent citation indexes. It covers a wide range of subject areas offering thousands of international journals to provide global context to research as well as videos to support and enhance the research experience. With a total journal retail value of $3,573,743.05, it stands as the largest database in the Academic Search suite.
JSTOR is a digital archive of more than 1,000 scholarly journals in the humanities, social sciences, and sciences, some dating from the 19th century.
JSTOR's moving wall policy means there is often a gap from 1-5 years between the most recently published issue and the date of the most recent issue available in JSTOR.
DigitalMaine is a service of the Maine State Library that partners with other libraries, historical societies, museums, and local organizations to digitize a repository collection of original primary source materials from and about Maine. The repository includes maps, church records, genealogical records, town reports, photographs, and other primary materials. Items cataloged to DigitalMaine are accessible through the Digital Public Library of America (DPLA).
If you find any other good primary resource materials, please let me know!