Original meaning
Originalists of all stripes cite "The Federalist Papers". It is fairly tenuous to suggest that this represents a good source for the original "intent": after all, Alexander Hamilton, who wrote the majority of those essays, was absent for the greater part of the Philadelphia Convention, and John Jay did not attend it at all. However, James Madison, the principal framer of the Constitution also wrote a substantial amount of "The Federalist Papers". Also, to suggest Hamilton and Jay's absence from the convention implies their ignorance as to the Constitution's original meaning is demeaning to those two men and inaccurate. The collected anti-Federalist papers, of course, will be no use at all to a person searching for the original "intent" of the framers. However, as evidence of how a reasonable person at the time would have understood the words of the Constitution, "The Federalist Papers" and the anti-Federalist essays are evidence of direct relevance.
Federalist Party
The Federalists, with twice as many newspapers at their command, slashed back with equal vituperation. John Fenno and "Peter Porcupine" (William Cobbett) were their nastiest penmen and Noah Webster their most learned. Hamilton subsidized the Federalist editors, wrote for their papers and in 1801 established his own paper, the "New York Evening Post." Though his reputation waned considerably following his death, Joseph Dennie ran three of the most popular and influential newspapers of the period, "The Farmer's Weekly Museum", the "Gazette of the United States" and "The Port Folio".