Where no biographical material for a person has been published, vital statistics and other sources can be used to provide basic data, especially date of death, which can then be used to find newspaper obituaries.
Ancestry Library Edition is a collection of vital records, directories, censuses, military records, and other material from the United States and Canada, intended for genealogical research. Includes United States federal census returns, 1790-1930.
The New England Historic Genealogical Society is the preeminent genealogical source for New England. Non-members may use the Library for a modest fee.
Cyndi's List of Genealogy Sites on the Internet is a vast compilation of links