Below you'll find "best bet" library databases for secondary and primary sources.
As the official digital dissertations archive for the Library of Congress, ProQuest Dissertations and Theses includes millions of searchable citations to dissertations and theses from 1861 to the present day with over a million full-text dissertations. The database offers full text for most dissertations added since 1997 and retrospective full-text coverage for older graduate works.
Newspapers, pamphlets, broadsides and books from London, the British Isles and the colonies gathered by the Reverend Charles Burney (1757-1817): "the largest and most comprehensive collection of early English news media." The present digital collection totals almost 1 million pages and contains approximately 1,270 titles. Title list Also available in the Gale NewsVault, a searchable collection of historical newspapers.