The American Antiquarian Society has one of the finest, if not THE finest, collections of seventeenth through twentieth century newspapers available anywhere in North America. The newspapers are housed in the Society's headquarters in Worcester, Massachusetts. At the beginning of the 2006 FGS conference, the American Antiquarian Society and their partner, NewsBank, announced that many of those newspapers will soon be available online.
The two organizations are offering a "preview" of the new offering, complete with advanced search techniques, in Booth #903 of the Exhibit Hall at the FGS conference. If you are in Boston, you might want to drop by and see what they are showing. (Admission to the Exhibit Hall is free.) Everyone else may have to wait a bit until this new offering is available online.